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Wang Y, Peng L, Wang F. M6A-mediated molecular patterns and tumor microenvironment infiltration characterization in nasopharyngeal carcinoma. Cancer Biol Ther 2024; 25:2333590. [PMID: 38532632 DOI: 10.1080/15384047.2024.2333590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 03/18/2024] [Indexed: 03/28/2024] Open
Abstract
N6-methyladenosine (m6A) is the most predominant RNA epigenetic regulation in eukaryotic cells. Numerous evidence revealed that m6A modification exerts a crucial role in the regulation of tumor microenvironment (TME) cell infiltration in several tumors. Nevertheless, the potential role and mechanism of m6A modification in nasopharyngeal carcinoma (NPC) remains unknown. mRNA expression data and clinical information from GSE102349, and GSE53819 datasets obtained from Gene Expression Omnibus (GEO) was used for differential gene expression and subsequent analysis. Consensus clustering was used to identify m6A-related molecular patterns of 88 NPC samples based on prognostic m6A regulators using Univariate Cox analysis. The TME cell-infiltrating characteristics of each m6A-related subclass were explored using single-sample gene set enrichment (ssGSEA) algorithm and CIBERSORT algotithm. DEGs between two m6A-related subclasses were screened using edgeR package. The prognostic signature and predicated nomogram were constructed based on the m6A-related DEGs. The cell infiltration and expression of prognostic signature in NPC was determined using immunohistochemistry (IHC) analysis. Chi-square test was used to analysis the significance of difference of the categorical variables. And survival analysis was performed using Kaplan-Meier plots and log-rank tests. The NPC samples were divided into two m6A-related subclasses. The TME cell-infiltrating characteristics analyses indicated that cluster 1 is characterized by immune-related and metabolism pathways activation, better response to anit-PD1 and anti-CTLA4 treatment and chemotherapy. And cluster 2 is characterized by stromal activation, low expression of HLA family and immune checkpoints, and a worse response to anti-PD1 and anti-CTLA4 treatment and chemotherapy. Furthermore, we identified 1558 DEGs between two m6A-related subclasses and constructed prognostic signatures to predicate the progression-free survival (PFS) for NPC patients. Compared to non-tumor samples, REEP2, TMSB15A, DSEL, and ID4 were upregulated in NPC samples. High expression of REEP2 and TMSB15A showed poor survival in NPC patients. The interaction between REEP2, TMSB15A, DSEL, ID4, and m6A regulators was detected. Our finding indicated that m6A modification plays an important role in the regulation of TME heterogeneity and complexity.
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Affiliation(s)
- Yong Wang
- Department of Radiotherapy, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Lisha Peng
- Department of Radiotherapy, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Feng Wang
- Department of Radiotherapy, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
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2
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Fang Z, Ding H, Han J, Fu L, Jin J, Feng W. Functions of N6-methyladenosine (m6A) RNA modifications in acute myeloid leukemia. J Leukoc Biol 2024; 116:662-671. [PMID: 38721720 DOI: 10.1093/jleuko/qiae106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 04/14/2024] [Accepted: 04/15/2024] [Indexed: 10/03/2024] Open
Abstract
N6-methyladenosine is the most common modification of eukaryotic RNA. N6-methyladenosine participates in RNA splicing, nuclear export, translation, and degradation through regulation by methyltransferases, methylation readers, and demethylases, affecting messenger RNA stability and translation efficiency. Through the dynamic and reversible regulatory network composed of "writers, erasers, and readers," N6-methyladenosine modification plays a unique role in the process of hematopoiesis. Acute myeloid leukemia is a heterogeneous disease characterized by malignant proliferation of hematopoietic stem cells/progenitor cells. Many studies have shown that N6-methyladenosine-related proteins are abnormally expressed in acute myeloid leukemia and play an important role in the occurrence and development of acute myeloid leukemia, acting as carcinogenic or anticancer factors. Here, we describe the mechanisms of action of reversing N6-methyladenosine modification in hematopoiesis and acute myeloid leukemia occurrence and progression to provide a basis for further research on the role of N6-methyladenosine methylation and its regulatory factors in normal hematopoiesis and acute myeloid leukemia, to ultimately estimate its potential clinical value.
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Affiliation(s)
- Zehao Fang
- Department of Hematology, Shaoxing People's Hospital, 568 Zhongxing North Road, Shaoxing 312000, China
| | - Hanyi Ding
- Department of Hematology, Shaoxing People's Hospital, 568 Zhongxing North Road, Shaoxing 312000, China
| | - Jiongping Han
- Department of Hematology, Shaoxing People's Hospital, 568 Zhongxing North Road, Shaoxing 312000, China
| | - Leihua Fu
- Department of Hematology, Shaoxing People's Hospital, 568 Zhongxing North Road, Shaoxing 312000, China
| | - Jing Jin
- Department of Hematology, Shaoxing People's Hospital, 568 Zhongxing North Road, Shaoxing 312000, China
| | - Weiying Feng
- Department of Hematology, Shaoxing People's Hospital, 568 Zhongxing North Road, Shaoxing 312000, China
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Kim SY, Na MJ, Yoon S, Shin E, Ha JW, Jeon S, Nam SW. The roles and mechanisms of coding and noncoding RNA variations in cancer. Exp Mol Med 2024; 56:1909-1920. [PMID: 39218979 PMCID: PMC11447202 DOI: 10.1038/s12276-024-01307-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 06/03/2024] [Accepted: 06/20/2024] [Indexed: 09/04/2024] Open
Abstract
Functional variations in coding and noncoding RNAs are crucial in tumorigenesis, with cancer-specific alterations often resulting from chemical modifications and posttranscriptional processes mediated by enzymes. These RNA variations have been linked to tumor cell proliferation, growth, metastasis, and drug resistance and are valuable for identifying diagnostic or prognostic cancer biomarkers. The diversity of posttranscriptional RNA modifications, such as splicing, polyadenylation, methylation, and editing, is particularly significant due to their prevalence and impact on cancer progression. Additionally, other modifications, including RNA acetylation, circularization, miRNA isomerization, and pseudouridination, are recognized as key contributors to cancer development. Understanding the mechanisms underlying these RNA modifications in cancer can enhance our knowledge of cancer biology and facilitate the development of innovative therapeutic strategies. Targeting these RNA modifications and their regulatory enzymes may pave the way for novel RNA-based therapies, enabling tailored interventions for specific cancer subtypes. This review provides a comprehensive overview of the roles and mechanisms of various coding and noncoding RNA modifications in cancer progression and highlights recent advancements in RNA-based therapeutic applications.
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Affiliation(s)
- Sang Yean Kim
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Functional RNomics Research Center, The Catholic University of Korea, Seoul, Republic of Korea
- NEORNAT Inc., Seoul, Republic of Korea
| | - Min Jeong Na
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Functional RNomics Research Center, The Catholic University of Korea, Seoul, Republic of Korea
- NEORNAT Inc., Seoul, Republic of Korea
| | - Sungpil Yoon
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Functional RNomics Research Center, The Catholic University of Korea, Seoul, Republic of Korea
- NEORNAT Inc., Seoul, Republic of Korea
| | - Eunbi Shin
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Functional RNomics Research Center, The Catholic University of Korea, Seoul, Republic of Korea
- Department of Biomedicine & Health Sciences, Graduate School, The Catholic University of Korea, Seoul, Korea
| | - Jin Woong Ha
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Functional RNomics Research Center, The Catholic University of Korea, Seoul, Republic of Korea
- Department of Biomedicine & Health Sciences, Graduate School, The Catholic University of Korea, Seoul, Korea
| | - Soyoung Jeon
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Functional RNomics Research Center, The Catholic University of Korea, Seoul, Republic of Korea
- Department of Biomedicine & Health Sciences, Graduate School, The Catholic University of Korea, Seoul, Korea
| | - Suk Woo Nam
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
- Functional RNomics Research Center, The Catholic University of Korea, Seoul, Republic of Korea.
- NEORNAT Inc., Seoul, Republic of Korea.
- Department of Biomedicine & Health Sciences, Graduate School, The Catholic University of Korea, Seoul, Korea.
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4
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Yang X, Mu Y, Feng Y, Li M, Hu H, Zhang X, Zuo Z, Wu R, Xu J, Zheng F, He X, Hu X, Zhang L. Physical exercise-induced circAnks1b upregulation promotes protective endoplasmic reticulum stress and suppresses apoptosis via miR-130b-5p/Pak2 signaling in an ischemic stroke model. CNS Neurosci Ther 2024; 30:e70055. [PMID: 39328024 PMCID: PMC11427801 DOI: 10.1111/cns.70055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 08/02/2024] [Accepted: 09/06/2024] [Indexed: 09/28/2024] Open
Abstract
AIMS Physical exercise (PE) can accelerate post-stroke recovery. This study investigated contributions of circRNAs to PE-induced improvements in post-stroke neurological function. METHODS Rats subjected to transient middle cerebral artery occlusion were left sedentary or provided running-wheel access for 4 weeks during recovery. CircRNAs from peri-infarct cortex were identified by high-throughput sequencing, and interactions with miRNAs by immunoprecipitation, fluorescence in suit hybridization, and dual-luciferase reporter assays. In vivo circRNA knockdown was achieved using shRNA-AAVs and in vitro overexpression by plasmid transfection. Transmission electron microscopy, western blotting, and TUNEL assays were conducted to explore circRNA contributions to endoplasmic reticulum (ER) stress and neuronal apoptosis. CircRNA levels were measured in plasma from stroke patients by qRT-PCR and associations with neurological scores assessed by Pearson's correlation analysis. RESULTS PE upregulated circAnks1b, reduced infarct volume, and mitigated neurological dysfunction, while circAnks1b knockdown exacerbated neurological dysfunction and increased infarct size despite PE. CircAnks1b sponged miR-130b-5p, thereby disinhibiting Pak2 expression. Conversely, Pak2 downregulation disrupted PE-mediated protective ER stress, leading to reduced IRE1/XBP1 and heightened apoptosis. Plasma circAnks1b was higher in stroke patients receiving PE than sedentary patients and correlated negatively with neurological scores. CONCLUSIONS CircAnks1b upregulation may be an effective therapeutic strategy for post-stroke recovery.
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Affiliation(s)
- Xiaofeng Yang
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Yating Mu
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Yifeng Feng
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Mingyue Li
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Haojie Hu
- Department of PsychologyNew York UniversityNew YorkNew YorkUSA
| | - Xiaoya Zhang
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Zejie Zuo
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Rui Wu
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Jinghui Xu
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Fang Zheng
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Xiaofei He
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Xiquan Hu
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Liying Zhang
- Department of Rehabilitation MedicineThe Third Affiliated Hospital, Sun Yat‐sen UniversityGuangzhouChina
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Lv CG, Cheng Y, Zhang L, Wu GG, Liang CY, Tao Z, Chen B. EXOSC2 Mediates the Pro-tumor Role of WTAP in Breast Cancer Cells via Activating the Wnt/β-Catenin Signal. Mol Biotechnol 2024; 66:2569-2582. [PMID: 37856011 DOI: 10.1007/s12033-023-00834-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 07/18/2023] [Indexed: 10/20/2023]
Abstract
BC (breast cancer) is the leading cause of cancer death in women. Exosome component 2 (EXOSC2), an RNA exosome component, is elevated in BC tissues and may relate to BC carcinogenesis. In this work, the high EXOSC2 expression was correlated with TNM (Tumor Node Metastasis) stage. Moreover, overexpression of EXOSC2 enhanced tumorigenic capacity of BC cells via facilitating cell proliferation and cell cycle progression, increasing migration and angiogenesis, as well as exacerbating xenograft formation in vivo. Whereas, EXOSC2 knockdown showed anti-cancer effects, including inhibition of cell proliferation and angiogenesis. Mechanistically, EXOSC2 activated the wnt/β-catenin pathway, which was also abolished by EXOSC2 knockdown. In addition, there were m6A methylation modification sites in the mRNA of EXOSC2. WTAP (Wilms tumor 1-associated protein) bound to EXOSC2 mRNA and increased its m6A methylation, resulting in extending the half-life of EXOSC2 mRNA. Luciferase data also confirmed that WTAP enhanced EXOSC2 mRNA stability through binding with the 3'-UTR containing m6A sites. Furthermore, WTAP silencing exhibited cancer-inhibiting effects on cell viability, cell cycle progression and tube formation, which was effectively reversed by EXOSC2 overexpression. In conclusion, our results demonstrate that EXOSC2 promotes the malignant behaviors of BC cells via activating the wnt/β-catenin pathway. In addition, EXOSC2 mediates the function of WTAP which contributes to the m6A modification of EXOSC2. Totally, this study suggested that EXOSC2 mediated the pro-tumor role of WTAP via activating the wnt/β-catenin signal.
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Affiliation(s)
- Chen-Guang Lv
- Department of General Surgery, General Hospital of Northern Theater Command, Shenyang, People's Republic of China
| | - Yao Cheng
- Department of Oncology, Panjin Central Hospital, Panjin, People's Republic of China
| | - Lei Zhang
- Department of Breast Surgery, The First Hospital of China Medical University, No. 155, Nanjing North Street, Shenyang, People's Republic of China
| | - Guo-Gang Wu
- Department of Thyroid and Breast Surgery, Ansteel Group General Hospital, Anshan, People's Republic of China
| | - Chun-Yan Liang
- Department of Oncology, The Fourth Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Zuo Tao
- Department of General Surgery, General Hospital of Northern Theater Command, Shenyang, People's Republic of China
| | - Bo Chen
- Department of Breast Surgery, The First Hospital of China Medical University, No. 155, Nanjing North Street, Shenyang, People's Republic of China.
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Zhang Y, Chen Z, Song J, Qian H, Wang Y, Liang Z. The role of m6A modified circ0049271 induced by MNNG in precancerous lesions of gastric cancer. Heliyon 2024; 10:e35654. [PMID: 39224358 PMCID: PMC11367269 DOI: 10.1016/j.heliyon.2024.e35654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 07/31/2024] [Accepted: 08/01/2024] [Indexed: 09/04/2024] Open
Abstract
Gastric cancer (GC) is a malignant cancer with the highest global rates of morbidity and death. Dietary factors have a close relationship with the occurrence of GC. Circular RNAs (circRNAs) and N6-methyladenine (m6A) are important factors in the onset and progression of GC and other malignancies. However, little is known about the role of circRNA m6A modifications in the occurrence and development of GC. Initially, a transformed malignant cell model generated by the chemical carcinogen N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) was established in this investigation. Furthermore, following exposure to MNNG, circ0049271 is substantially expressed in gastric epithelial cells (GES-1). Subsequent research revealed that the knockdown of circ0049271 prevented the epithelial-mesenchymal transition (EMT) as well as the migration, invasion, and proliferation of gastric epithelial cells induced by long-term exposure to MNNG. The opposite effects were observed when circ0049271 was overexpressed. Mechanistically, circ0049271 activates the TGFβ/SMAD signaling pathway and has m6A modifications mediated by WTAP. Our findings indicate that circ0049271 promotes the occurrence of GC by regulating the TGFβ/SMAD pathway, and WTAP may mediate the methylation of circ0049271 m6A. This study provides new insights into the regulation of circRNA-mediated m6A modifications and the discovery of early GC induced by dietary factors such as nitrite.
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Affiliation(s)
- Yue Zhang
- Wujin Institute of Molecular Diagnostics and Precision Cancer Medicine of Jiangsu University, Wujin Hospital Affiliated with Jiangsu University, Changzhou, 213017, Jiangsu, China
- Laboratory Department, Zhenjiang Center for Diseases Control and Prevention, Zhenjiang, 212000, China
| | - Zhiqiang Chen
- Ent Hospital of Nanjing Renpin, Nanjing, 210000, Jiangsu, China
| | - Jiajia Song
- Wujin Institute of Molecular Diagnostics and Precision Cancer Medicine of Jiangsu University, Wujin Hospital Affiliated with Jiangsu University, Changzhou, 213017, Jiangsu, China
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Hui Qian
- Wujin Institute of Molecular Diagnostics and Precision Cancer Medicine of Jiangsu University, Wujin Hospital Affiliated with Jiangsu University, Changzhou, 213017, Jiangsu, China
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Yue Wang
- Wujin Institute of Molecular Diagnostics and Precision Cancer Medicine of Jiangsu University, Wujin Hospital Affiliated with Jiangsu University, Changzhou, 213017, Jiangsu, China
- Department of Oncology, Wujin Hospital Affiliated with Jiangsu University, Changzhou, 213017, China
| | - Zhaofeng Liang
- Wujin Institute of Molecular Diagnostics and Precision Cancer Medicine of Jiangsu University, Wujin Hospital Affiliated with Jiangsu University, Changzhou, 213017, Jiangsu, China
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
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Zhang Z, Fu Y, Ju X, Zhang F, Zhang P, He M. Advances in Engineering Circular RNA Vaccines. Pathogens 2024; 13:692. [PMID: 39204292 PMCID: PMC11356823 DOI: 10.3390/pathogens13080692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 08/07/2024] [Accepted: 08/13/2024] [Indexed: 09/03/2024] Open
Abstract
Engineered circular RNAs (circRNAs) are a class of single-stranded RNAs with head-to-tail covalently linked structures that integrate open reading frames (ORFs) and internal ribosome entry sites (IRESs) with the function of coding and expressing proteins. Compared to mRNA vaccines, circRNA vaccines offer a more improved method that is safe, stable, and simple to manufacture. With the rapid revelation of the biological functions of circRNA and the success of Severe Acute Respiratory Coronavirus Type II (SARS-CoV-2) mRNA vaccines, biopharmaceutical companies and researchers around the globe are attempting to develop more stable circRNA vaccines for illness prevention and treatment. Nevertheless, research on circRNA vaccines is still in its infancy, and more work and assessment are needed for their synthesis, delivery, and use. In this review, based on the current understanding of the molecular biological properties and immunotherapeutic mechanisms of circRNA, we summarize the current preparation methods of circRNA vaccines, including design, synthesis, purification, and identification. We discuss their delivery strategies and summarize the challenges facing the clinical application of circRNAs to provide references for circRNA vaccine-related research.
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Affiliation(s)
- Zhongyan Zhang
- School of Pharmacy, Yantai University, Yantai 264005, China;
| | - Yuanlei Fu
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai 264005, China; (Y.F.); (X.J.); (F.Z.)
| | - Xiaoli Ju
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai 264005, China; (Y.F.); (X.J.); (F.Z.)
| | - Furong Zhang
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai 264005, China; (Y.F.); (X.J.); (F.Z.)
| | - Peng Zhang
- School of Pharmacy, Yantai University, Yantai 264005, China;
| | - Meilin He
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai 264005, China; (Y.F.); (X.J.); (F.Z.)
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Cheng X, Yang H, Chen Y, Zeng Z, Liu Y, Zhou X, Zhang C, Xie A, Wang G. METTL3-mediated m 6A modification of circGLIS3 promotes prostate cancer progression and represents a potential target for ARSI therapy. Cell Mol Biol Lett 2024; 29:109. [PMID: 39143552 PMCID: PMC11325714 DOI: 10.1186/s11658-024-00628-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 08/05/2024] [Indexed: 08/16/2024] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) have been shown to be involved in tumorigenesis and progression. However, the role of circGLIS3 (hsa_circ_0002874) in prostate cancer (PCa) has yet not been reported. METHODS Candidate circRNA were determined through comprehensive analysis of public datasets, PCa cell lines, and tissues data. A series of cellular functional assays, including CCK-8, colony formation, wound healing, and transwell assays were performed. Subsequently, RNA sequencing, RNA immunoprecipitation, methylated RNA immunoprecipitation, microRNA pulldown, luciferase reporter assay, and western blot were used to explore the underlying molecular mechanisms. Moreover, the xenograft tumor mouse model was established to elucidate the function of circGLIS3. RESULTS CircGLIS3, derived from exon 2 of the parental GLIS3 gene, was identified as a novel oncogenic circRNA in PCa that was closely associated with the biochemical recurrence. Its expression levels were upregulated in PCa tissues and cell lines as well as enzalutamide high-resistant cells. The cellular functional assays revealed that circGLIS3 promoted PCa cell proliferation, migration, and invasion. METTL3-mediated N6-methyladenosine (m6A) modification maintained its upregulation by enhancing its stability. Mechanically, CircGLIS3 sponged miR-661 to upregulate MDM2, thus regulating the p53 signaling pathway to promote cell proliferation, migration, and invasion. Furthermore, in vitro and in vivo experiments, the knockdown of circGLIS3 improved the response of PCa cells to ARSI therapies such as enzalutamide. CONCLUSIONS METTL3-mediated m6A modification of circGLIS3 regulates the p53 signaling pathway via the miR-661/MDM2 axis, thereby facilitating PCa progression. Meanwhile, this study unveils a promising potential target for ARSI therapy for PCa.
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Affiliation(s)
- Xiaofeng Cheng
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, Jiangxi, China
- Jiangxi Institute of Urology, Nanchang, 330000, Jiangxi, China
| | - Heng Yang
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, Jiangxi, China
- Jiangxi Institute of Urology, Nanchang, 330000, Jiangxi, China
| | - Yujun Chen
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, Jiangxi, China
- Jiangxi Institute of Urology, Nanchang, 330000, Jiangxi, China
| | - Zhenhao Zeng
- Department of Urology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330000, Jiangxi, China
| | - Yifu Liu
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, Jiangxi, China
- Jiangxi Institute of Urology, Nanchang, 330000, Jiangxi, China
| | - Xiaochen Zhou
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, Jiangxi, China
- Jiangxi Institute of Urology, Nanchang, 330000, Jiangxi, China
| | - Cheng Zhang
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, Jiangxi, China
- Jiangxi Institute of Urology, Nanchang, 330000, Jiangxi, China
| | - An Xie
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, Jiangxi, China.
- Jiangxi Institute of Urology, Nanchang, 330000, Jiangxi, China.
| | - Gongxian Wang
- Department of Urology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330000, Jiangxi, China.
- Jiangxi Institute of Urology, Nanchang, 330000, Jiangxi, China.
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9
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Wu F, Huang H, Sun D, Cai B, Zhou H, Quan R, Yang H. Identification of key genes with abnormal RNA methylation modification and selected m6A regulators in ankylosing spondylitis. Immun Inflamm Dis 2024; 12:e1314. [PMID: 39092763 PMCID: PMC11295096 DOI: 10.1002/iid3.1314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 08/04/2024] Open
Abstract
BACKGROUND N6-methyladenosine (m6A) has been identified as the most abundant modification of RNA molecules and the aberrant m6A modifications have been associated with the development of autoimmune diseases. However, the role of m6A modification in ankylosing spondylitis (AS) has not been adequately investigated. Therefore, we aimed to explore the significance of m6A regulator-mediated RNA methylation in AS. METHODS The methylated RNA immunoprecipitation sequencing (meRIP-seq) and digital RNA sequencing (Digital RNA-seq) were conducted using the peripheral blood mononuclear cells from three AS cases and three healthy controls, to identify genes affected by abnormal RNA methylation. The genes associated with different peaks were cross-referenced with AS-related genes obtained from the GeneCards Suite. Subsequently, the expression levels of shared differentially expressed genes (DEGs) and key m6A regulators in AS were evaluated using data from 68 AS cases and 36 healthy controls from two data sets (GSE25101 and GSE73754). In addition, the results were validated through quantitative polymerase chain reaction (qPCR). RESULTS The meRIP-seq and Digital RNA-seq analyses identified 28 genes with upregulated m6A peaks but with downregulated expression, and 52 genes with downregulated m6A peaks but with upregulated expression. By intersecting the genes associated with different peaks with 2184 AS-related genes from the GeneCards Suite, we identified a total of five shared DEGs: BCL11B, KAT6B, IL1R1, TRIB1, and ALDH2. Through analysis of the data sets and qPCR, we found that BCL11B and IL1R1 were differentially expressed in AS. Moreover, two key m6A regulators, WTAP and heterogeneous nuclear ribonucleoprotein C, were identified. CONCLUSIONS In conclusion, the current study revealed that m6A modification plays a crucial role in AS and might hence provide a new treatment strategy for AS disease.
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Affiliation(s)
- Fengqing Wu
- Department of OrthopedicsYiwu Central HospitalYiwuChina
| | - Hongbin Huang
- Department of OrthopedicsSecond Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Deyang Sun
- First College of Clinical MedicineZhejiang Chinese Medical UniversityHangzhouChina
| | - Bingbing Cai
- Department of OrthopedicsHangzhou Xiaoshan District Chinese Medicine HospitalHangzhouChina
| | - Huateng Zhou
- Department of OrthopedicsHangzhou Xiaoshan District Chinese Medicine HospitalHangzhouChina
| | - Renfu Quan
- Department of OrthopedicsHangzhou Xiaoshan District Chinese Medicine HospitalHangzhouChina
| | - Huan Yang
- Department of BiochemistryZhejiang University School of Medicine and Zhejiang University Medical CenterHangzhouChina
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10
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Zhang D, Ma Y, Naz M, Ahmed N, Zhang L, Zhou JJ, Yang D, Chen Z. Advances in CircRNAs in the Past Decade: Review of CircRNAs Biogenesis, Regulatory Mechanisms, and Functions in Plants. Genes (Basel) 2024; 15:958. [PMID: 39062737 PMCID: PMC11276256 DOI: 10.3390/genes15070958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 07/12/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
Circular RNA (circRNA) is a type of non-coding RNA with multiple biological functions. Whole circRNA genomes in plants have been identified, and circRNAs have been demonstrated to be widely present and highly expressed in various plant tissues and organs. CircRNAs are highly stable and conserved in plants, and exhibit tissue specificity and developmental stage specificity. CircRNAs often interact with other biomolecules, such as miRNAs and proteins, thereby regulating gene expression, interfering with gene function, and affecting plant growth and development or response to environmental stress. CircRNAs are less studied in plants than in animals, and their regulatory mechanisms of biogenesis and molecular functions are not fully understood. A variety of circRNAs in plants are involved in regulating growth and development and responding to environmental stress. This review focuses on the biogenesis and regulatory mechanisms of circRNAs, as well as their biological functions during growth, development, and stress responses in plants, including a discussion of plant circRNA research prospects. Understanding the generation and regulatory mechanisms of circRNAs is a challenging but important topic in the field of circRNAs in plants, as it can provide insights into plant life activities and their response mechanisms to biotic or abiotic stresses as well as new strategies for plant molecular breeding and pest control.
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Affiliation(s)
- Dongqin Zhang
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
| | - Yue Ma
- College of Agriculture, Guizhou University, Guiyang 550025, China;
| | - Misbah Naz
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
| | - Nazeer Ahmed
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
| | - Libo Zhang
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
| | - Jing-Jiang Zhou
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
- Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge CB2 0XY, UK
| | - Ding Yang
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
| | - Zhuo Chen
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
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11
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Li S, Zhang Y, Liu G, Song N, Ruan Z, Guo R, Tang Y, Cao X, Huang X, Gao T, Hao S, Wang Q, Chang T. Exploring the Roles of m6A-Modified circRNAs in Myasthenia Gravis Based on Multi-Omics Analysis. Mol Neurobiol 2024:10.1007/s12035-024-04352-9. [PMID: 39017976 DOI: 10.1007/s12035-024-04352-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Accepted: 07/03/2024] [Indexed: 07/18/2024]
Abstract
Myasthenia gravis (MG) is an autoimmune disease mediated by autoantibodies. The important roles of circRNAs modified by m6A methylation have been reported in the pathogenesis of other autoimmune diseases, but remain unclear in MG. To address this point, we collected peripheral blood mononuclear cells from six MG patients and six healthy controls and performed m6A‑circRNA epitranscriptomic microarray and RNA sequencing. Differentially m6A-modified circRNAs and differentially expressed genes (DEGs) were analyzed. A network was constructed containing 17 circRNAs, 30 miRNAs, and 34 DEGs. The GSE85452 dataset was downloaded. DEGs that were differentially expressed in the GSE85452 dataset were selected as seed genes. Finally, four candidate m6A-modified circRNAs (hsa_circ_0084735, hsa_circ_0018652, hsa_circ_0025731, and hsa_circ_0030997) were identified through a random walk with restart. We found that they had different degree correlations with different immune cells. The results of MeRIP-qPCR showed that the m6A methylated levels of hsa_circ_0084735 and hsa_circ_0025731 were downregulated in MG patients, while the other two circRNAs were not significantly different between MG and control group. For the first time, we explored the pathogenesis of MG at the epigenetic transcriptome level. Our results will open new perspectives for MG research and identify potential biomarkers and therapeutic targets for MG.
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Affiliation(s)
- Shuang Li
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Yu Zhang
- Department of Neurosurgery, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Geyu Liu
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
- The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Na Song
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Zhe Ruan
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Rongjing Guo
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Yonglan Tang
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Xiangqi Cao
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Xiaoxi Huang
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Ting Gao
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Sijia Hao
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Qingqing Wang
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Ting Chang
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, 710038, Shaanxi, China.
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12
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Wu Y, Chen Y, Yan X, Dai X, Liao Y, Yuan J, Wang L, Liu D, Niu D, Sun L, Chen L, Zhang Y, Xiang L, Chen A, Li S, Xiang W, Ni Z, Chen M, He F, Yang M, Lian J. Lopinavir enhances anoikis by remodeling autophagy in a circRNA-dependent manner. Autophagy 2024; 20:1651-1672. [PMID: 38433354 PMCID: PMC11210930 DOI: 10.1080/15548627.2024.2325304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 02/15/2024] [Accepted: 02/26/2024] [Indexed: 03/05/2024] Open
Abstract
Macroautophagy/autophagy-mediated anoikis resistance is crucial for tumor metastasis. As a key autophagy-related protein, ATG4B has been demonstrated to be a prospective anti-tumor target. However, the existing ATG4B inhibitors are still far from clinical application, especially for tumor metastasis. In this study, we identified a novel circRNA, circSPECC1, that interacted with ATG4B. CircSPECC1 facilitated liquid-liquid phase separation of ATG4B, which boosted the ubiquitination and degradation of ATG4B in gastric cancer (GC) cells. Thus, pharmacological addition of circSPECC1 may serve as an innovative approach to suppress autophagy by targeting ATG4B. Specifically, the circSPECC1 underwent significant m6A modification in GC cells and was subsequently recognized and suppressed by the m6A reader protein ELAVL1/HuR. The activation of the ELAVL1-circSPECC1-ATG4B pathway was demonstrated to mediate anoikis resistance in GC cells. Moreover, we also verified that the above pathway was closely related to metastasis in tissues from GC patients. Furthermore, we determined that the FDA-approved compound lopinavir efficiently enhanced anoikis and prevented metastasis by eliminating repression of ELAVL1 on circSPECC1. In summary, this study provides novel insights into ATG4B-mediated autophagy and introduces a viable clinical inhibitor of autophagy, which may be beneficial for the treatment of GC with metastasis.
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Affiliation(s)
- Yaran Wu
- Department of Clinical Laboratory Medicine, Southwest Hospital, Army Medical University, Chongqing, China
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
| | - Yang Chen
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Xiaojing Yan
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Xufang Dai
- College of Education and Science, Chongqing Normal University, Chongqing, China
| | - Yaling Liao
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
| | - Jing Yuan
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Liting Wang
- Biomedical Analysis Center, Army Medical University, Chongqing, China
| | - Dong Liu
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
| | - Dun Niu
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
| | - Liangbo Sun
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
| | - Lingxi Chen
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Yang Zhang
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
| | - Li Xiang
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
| | - An Chen
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
| | - Shuhui Li
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
| | - Wei Xiang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Rehabilitation Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Zhenhong Ni
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Rehabilitation Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Ming Chen
- Department of Clinical Laboratory Medicine, Southwest Hospital, Army Medical University, Chongqing, China
| | - Fengtian He
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Mingzhen Yang
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
| | - Jiqin Lian
- Department of Clinical Laboratory Medicine, Southwest Hospital, Army Medical University, Chongqing, China
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University, Chongqing, China
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13
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Yang J, Liang F, Zhang F, Zhao H, Gong Q, Gao N. Recent advances in the reciprocal regulation of m 6A modification with non-coding RNAs and its therapeutic application in acute myeloid leukemia. Pharmacol Ther 2024; 259:108671. [PMID: 38830387 DOI: 10.1016/j.pharmthera.2024.108671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/25/2024] [Accepted: 05/31/2024] [Indexed: 06/05/2024]
Abstract
N6-methyladenosine (m6A) is one of the most common modifications of RNA in eukaryotic cells and is involved in mRNA metabolism, including stability, translation, maturation, splicing, and export. m6A also participates in the modification of multiple types of non-coding RNAs, such as microRNAs, long non-coding RNAs, and circular RNAs, thereby affecting their metabolism and functions. Increasing evidence has revealed that m6A regulators, such as writers, erasers, and readers, perform m6A-dependent modification of ncRNAs, thus affecting cancer progression. Moreover, ncRNAs modulate m6A regulators to affect cancer development and progression. In this review, we summarize recent advances in understanding m6A modification and ncRNAs and provide insights into the interaction between m6A modification and ncRNAs in cancer. We also discuss the potential clinical applications of the mechanisms underlying the interplay between m6A modifications and ncRNAs in acute myeloid leukemia (AML). Therefore, clarifying the mutual regulation between m6A modifications and ncRNAs is of great significance to identify novel therapeutic targets for AML and has great clinical application prospects.
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Affiliation(s)
- Jiawang Yang
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, Guizhou, China; Chinese Phramcological Society-Guizhou Province Joint Laboratory for Pharmacology, Zunyi 563000, Guizhou, China
| | - Feng Liang
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, Guizhou, China; Chinese Phramcological Society-Guizhou Province Joint Laboratory for Pharmacology, Zunyi 563000, Guizhou, China
| | - Fenglin Zhang
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, Guizhou, China; Chinese Phramcological Society-Guizhou Province Joint Laboratory for Pharmacology, Zunyi 563000, Guizhou, China
| | - Hailong Zhao
- Department of Pathophysiology, Zunyi Medical University, Zunyi 563000, Guizhou, China.
| | - Qihai Gong
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, Guizhou, China; Chinese Phramcological Society-Guizhou Province Joint Laboratory for Pharmacology, Zunyi 563000, Guizhou, China.
| | - Ning Gao
- Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, Guizhou, China; Chinese Phramcological Society-Guizhou Province Joint Laboratory for Pharmacology, Zunyi 563000, Guizhou, China.
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14
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Xian G, Huang R, Xu M, Zhao H, Xu X, Chen Y, Ren H, Xu D, Zeng Q. Noncoding RNA regulates the expression of Krm1 and Dkk2 to synergistically affect aortic valve lesions. Exp Mol Med 2024; 56:1560-1573. [PMID: 38945954 PMCID: PMC11297286 DOI: 10.1038/s12276-024-01256-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 02/26/2024] [Accepted: 03/19/2024] [Indexed: 07/02/2024] Open
Abstract
Calcific aortic valve disease (CAVD) is becoming an increasingly important global medical problem, but effective pharmacological treatments are lacking. Noncoding RNAs play a pivotal role in the progression of cardiovascular diseases, but their relationship with CAVD remains unclear. Sequencing data revealed differential expression of many noncoding RNAs in normal and calcified aortic valves, with significant differences in circHIPK3 and miR-182-5p expression. Overexpression of circHIPK3 ameliorated aortic valve lesions in a CAVD mouse model. In vitro experiments demonstrated that circHIPK3 inhibits the osteogenic response of aortic valve interstitial cells. Mechanistically, DEAD-box helicase 5 (DDX5) recruits methyltransferase 3 (METTL3) to promote the N6-methyladenosine (m6A) modification of circHIPK3. Furthermore, m6A-modified circHIPK3 increases the stability of Kremen1 (Krm1) mRNA, and Krm1 is a negative regulator of the Wnt/β-catenin pathway. Additionally, miR-182-5p suppresses the expression of Dickkopf2 (Dkk2), the ligand of Krm1, and attenuates the Krm1-mediated inhibition of Wnt signaling. Activation of the Wnt signaling pathway significantly contributes to the promotion of aortic valve calcification. Our study describes the role of the Krm1-Dkk2 axis in inhibiting Wnt signaling in aortic valves and suggests that noncoding RNAs are upstream regulators of this process.
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Affiliation(s)
- Gaopeng Xian
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Southern Medical University, 510515, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, China
| | - Rong Huang
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA, 02118, USA
| | - Minhui Xu
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Southern Medical University, 510515, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, China
| | - Hengli Zhao
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Southern Medical University, 510515, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, China
| | - Xingbo Xu
- Department of Cardiology, University Medical Center of Goettingen, Robert-Koch-Str. 40, 37075, Goettingen, Germany
| | - Yangchao Chen
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Hao Ren
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Southern Medical University, 510515, Guangzhou, China
- Department of Rheumatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Dingli Xu
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Southern Medical University, 510515, Guangzhou, China.
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, China.
| | - Qingchun Zeng
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Southern Medical University, 510515, Guangzhou, China.
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, China.
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15
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Zhu X, Li W, Lu M, Shang J, Zhou J, Lin L, Liu Y, Xing J, Zhang M, Zhao S, Lu J, Shi X. M 6A demethylase FTO-stabilized exosomal circBRCA1 alleviates oxidative stress-induced granulosa cell damage via the miR-642a-5p/FOXO1 axis. J Nanobiotechnology 2024; 22:367. [PMID: 38918838 PMCID: PMC11197183 DOI: 10.1186/s12951-024-02583-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 05/24/2024] [Indexed: 06/27/2024] Open
Abstract
BACKGROUND Premature ovarian insufficiency (POI) is an important cause of female infertility and seriously impacts the physical and psychological health of patients. Human umbilical cord mesenchymal stem cell-derived exosomes (HucMSCs-Exs, H-Exs) have exhibited protective effects on ovarian function with unclear mechanisms. METHODS A comprehensive analysis of the Gene Expression Omnibus (GEO) database were used to identify POI-associated circRNAs and miRNAs. The relationship between HucMSC-derived exosomal circBRCA1/miR-642a-5p/FOXO1 axis and POI was examined by RT-qPCR, Western blotting, reactive oxygen species (ROS) staining, senescence-associated β-gal (SA-β-gal) staining, JC-1 staining, TEM, oxygen consumption rate (OCR) measurements and ATP assay in vivo and in vitro. RT-qPCR detected the expression of circBRCA1 in GCs and serum of patients with normal ovarian reserve function (n = 50) and patients with POI (n = 50); then, the correlation of circBRCA1 with ovarian reserve function indexes was analyzed. RESULTS Herein, we found that circBRCA1 was decreased in the serum and ovarian granulosa cells (GCs) of patients with POI and was associated with decreased ovarian reserve. H-Exs improved the disorder of the estrous cycles and reproductive hormone levels, reduced the number of atretic follicles, and alleviated the apoptosis and senescence of GCs in rats with POI. Moreover, H-Exs mitigated mitochondrial damage and reversed the reduced circBRCA1 expression induced by oxidative stress in GCs. Mechanistically, FTO served as an eraser to increase the stability and expression of circBRCA1 by mediating the m6A demethylation of circBRCA1, and exosomal circBRCA1 sponged miR-642a-5p to block its interaction with FOXO1. CircBRCA1 insufficiency aggravated mitochondrial dysfunction, mimicking FTO or FOXO1 depletion effects, which was counteracted by miR-642a-5p inhibition. CONCLUSION H-Exs secreted circBRCA1 regulated by m6A modification, directly sponged miR-642a-5p to upregulate FOXO1, resisted oxidative stress injuries in GCs and protected ovarian function in rats with POI. Exosomal circBRCA1 supplementation may be a general prospect for the prevention and treatment of POI.
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Affiliation(s)
- Xiaolan Zhu
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China.
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China.
- Reproductive Sciences Institute, Jiangsu University, Zhenjiang, China.
| | - Wenxin Li
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Minjun Lu
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Junyu Shang
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jiamin Zhou
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Li Lin
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yueqin Liu
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jie Xing
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Mengxue Zhang
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Shijie Zhao
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jingjing Lu
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xuyan Shi
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
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16
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Li Z, Yin S, Yang K, Zhang B, Wu X, Zhang M, Gao D. CircRNA Regulation of T Cells in Cancer: Unraveling Potential Targets. Int J Mol Sci 2024; 25:6383. [PMID: 38928088 PMCID: PMC11204142 DOI: 10.3390/ijms25126383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
T lymphocytes play a critical role in antitumor immunity, but their exhaustion poses a significant challenge for immune evasion by malignant cells. Circular RNAs (circRNAs), characterized by their covalently closed looped structure, have emerged as pivotal regulators within the neoplastic landscape. Recent studies have highlighted their multifaceted roles in cellular processes, including gene expression modulation and protein function regulation, which are often disrupted in cancer. In this review, we systematically explore the intricate interplay between circRNAs and T cell modulation within the tumor microenvironment. By dissecting the regulatory mechanisms through which circRNAs impact T cell exhaustion, we aim to uncover pathways crucial for immune evasion and T cell dysfunction. These insights can inform innovative immunotherapeutic strategies targeting circRNA-mediated molecular pathways. Additionally, we discuss the translational potential of circRNAs as biomarkers for therapeutic response prediction and as intervention targets. Our comprehensive analysis aims to enhance the understanding of immune evasion dynamics in the tumor microenvironment by facilitating the development of precision immunotherapy.
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Affiliation(s)
- Zelin Li
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330047, China; (Z.L.); (B.Z.)
- The First Clinical Medical College, Nanchang University, Nanchang 330047, China; (S.Y.); (X.W.)
| | - Shuanshuan Yin
- The First Clinical Medical College, Nanchang University, Nanchang 330047, China; (S.Y.); (X.W.)
| | - Kangping Yang
- The Second Clinical Medical College, Nanchang University, Nanchang 330047, China;
| | - Baojie Zhang
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330047, China; (Z.L.); (B.Z.)
| | - Xuanhuang Wu
- The First Clinical Medical College, Nanchang University, Nanchang 330047, China; (S.Y.); (X.W.)
| | - Meng Zhang
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330047, China; (Z.L.); (B.Z.)
| | - Dian Gao
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330047, China; (Z.L.); (B.Z.)
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Yu F, Fang P, Fang Y, Chen D. Circ_0027791 contributes to the growth and immune evasion of hepatocellular carcinoma via the miR-496/programmed cell death ligand 1 axis in an m6A-dependent manner. ENVIRONMENTAL TOXICOLOGY 2024; 39:3721-3733. [PMID: 38546290 DOI: 10.1002/tox.24188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/03/2024] [Accepted: 02/10/2024] [Indexed: 05/16/2024]
Abstract
Emerging evidence indicates the critical roles of circular RNAs in the development of multiple cancers, containing hepatocellular carcinoma (HCC). Herein, our present research reported the biological function and mechanism of circ_0027791 in HCC progression. Circ_0027791, microRNA-496 (miR-496), programmed cell death ligand 1 (PDL1), and methyltransferase-like 3 (METTL3) levels were detected by real-time quantitative polymerase chain reaction (RT-qPCR). Cell viability, proliferation, invasion, and sphere formation ability were detected using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide, 5-ethynyl-2'-deoxyuridine, transwell, and sphere formation assays. Macrophage polarization was detected using flow cytometry assay. To understand the role of circ_0027791 during the immune escape, HCC cells were cocultured with peripheral blood mononuclear cells or cytokine-induced killer (CIK) cells in vitro. A xenograft mouse model was applied to assess the function of circ_0027791 in vivo. After prediction using circinteractome and miRDB, the binding between miR-496 and circ_0027791 or PDL1 was validated based on a dual-luciferase reporter assay. Interaction between METTL3 and circ_0027791 was determined using methylated RNA immunoprecipitation (MeRIP)-qPCR, RIP-qPCR, and RNA pull-down assays. Circ_0027791, PDL1, and METTL3 expression were upregulated, and miR-496 was decreased in HCC patients and cells. Moreover, circ_0027791 knockdown might repress proliferation, invasion, sphere formation, M2 macrophage polarization, and antitumor immune response. Circ_0027791 knockdown repressed HCC tumor growth in vivo. In mechanism, circ_0027791 functioned as a sponge for miR-496 to increase PDL1 expression. In addition, METTL3 mediated the m6A methylation of circ_0027791 and stabilized its expression. METTL3-induced circ_0027791 facilitated HCC cell progression partly regulating the miR-496/PDL1 axis, which provided a new prognostic and therapeutic marker for HCC.
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Affiliation(s)
- Furong Yu
- Department of Medical Technology, Anhui Medical College, Hefei, China
| | - Peifei Fang
- School of Basic Medicine, Anhui Medical College, Hefei, Anhi, China
| | - Yonghong Fang
- Department of Medical Technology, Anhui Medical College, Hefei, China
| | - Daojun Chen
- Department of Medical Technology, Anhui Medical College, Hefei, China
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18
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Pan J, Tong F, Ren N, Ren L, Yang Y, Gao F, Xu Q. Role of N 6‑methyladenosine in the pathogenesis, diagnosis and treatment of prostate cancer (Review). Oncol Rep 2024; 51:88. [PMID: 38757383 PMCID: PMC11110010 DOI: 10.3892/or.2024.8747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 04/19/2024] [Indexed: 05/18/2024] Open
Abstract
Prostate cancer (PCa) affects males of all racial and ethnic groups, and leads to higher rates of mortality in those belonging to a lower socioeconomic status due to the late detection of the disease. PCa affects middle‑aged males between the ages of 45 and 60 years, and is the highest cause of cancer‑associated mortality in Western countries. As the most abundant and common mRNA modification in higher eukaryotes, N6‑methyladenosine (m6A) is widely distributed in mammalian cells and influences various aspects of mRNA metabolism. Recent studies have found that abnormal expression levels of various m6A regulators significantly affect the development and progression of various types of cancer, including PCa. The present review discusses the influence of m6A regulatory factors on the pathogenesis and progression of PCa through mRNA modification based on the current state of research on m6A methylation modification in PCa. It is considered that the treatment of PCa with micro‑molecular drugs that target the epigenetics of the m6A regulator to correct abnormal m6A modifications is a direction for future research into current diagnostic and therapeutic approaches for PCa.
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Affiliation(s)
- Junjie Pan
- Department of Clinical Pharmacology, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Cancer Center, Westlake University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
- Fourth Clinical Medical College of Zhejiang Chinese Medical University, Affiliated Hangzhou First People's Hospital, Hangzhou, Zhejiang 310051, P.R. China
| | - Fei Tong
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China
| | - Ning Ren
- Fourth Clinical Medical College of Zhejiang Chinese Medical University, Affiliated Hangzhou First People's Hospital, Hangzhou, Zhejiang 310051, P.R. China
| | - Lanqi Ren
- Fourth Clinical Medical College of Zhejiang Chinese Medical University, Affiliated Hangzhou First People's Hospital, Hangzhou, Zhejiang 310051, P.R. China
| | - Yibei Yang
- Fourth Clinical Medical College of Zhejiang Chinese Medical University, Affiliated Hangzhou First People's Hospital, Hangzhou, Zhejiang 310051, P.R. China
| | - Feng Gao
- Department of Urology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang 310007, P.R. China
| | - Qiaoping Xu
- Department of Clinical Pharmacology, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Cancer Center, Westlake University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
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19
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Li S, Wang J, Ren G. CircRNA: An emerging star in plant research: A review. Int J Biol Macromol 2024; 272:132800. [PMID: 38825271 DOI: 10.1016/j.ijbiomac.2024.132800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/27/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
CircRNAs are a class of covalently closed non-coding RNA formed by linking the 5' terminus and the 3' terminus after reverse splicing. CircRNAs are widely found in eukaryotes, and they are highly conserved, with spatio-temporal expression specificity and stability. CircRNAs can act as miRNA sponges to regulate the expression of downstream target genes, regulating the transcription of parental genes and some can even be translated into peptides or proteins. Research on circRNAs in plants is still in its infancy compared to that in animals. With the deepening of research, the results of a variety of plant circRNAs suggest that they play an important role in growth and development, and tolerance towards abiotic stresses such as salt, drought, low temperature, high temperature and other adverse environments. In this review paper, we elaborated the molecular characteristics, mechanism of action, function and bioinformatics databases of plant circRNAs, combined with the progress of circRNA research in animals, discussed the potential mechanism of action of plant circRNAs, and proposed the unsolved problems and prospects for future application of plant circRNAs.
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Affiliation(s)
- Simin Li
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Jingyi Wang
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Guocheng Ren
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan 250014, China; Dongying Institute, Shandong Normal University, Dongying 257000, China.
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20
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Thamjamrassri P, Ariyachet C. Circular RNAs in Cell Cycle Regulation of Cancers. Int J Mol Sci 2024; 25:6094. [PMID: 38892280 PMCID: PMC11173060 DOI: 10.3390/ijms25116094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 05/26/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Cancer has been one of the most problematic health issues globally. Typically, all cancers share a common characteristic or cancer hallmark, such as sustaining cell proliferation, evading growth suppressors, and enabling replicative immortality. Indeed, cell cycle regulation in cancer is often found to be dysregulated, leading to an increase in aggressiveness. These dysregulations are partly due to the aberrant cellular signaling pathway. In recent years, circular RNAs (circRNAs) have been widely studied and classified as one of the regulators in various cancers. Numerous studies have reported that circRNAs antagonize or promote cancer progression through the modulation of cell cycle regulators or their associated signaling pathways, directly or indirectly. Mostly, circRNAs are known to act as microRNA (miRNA) sponges. However, they also hold additional mechanisms for regulating cellular activity, including protein binding, RNA-binding protein (RBP) recruitment, and protein translation. This review will discuss the current knowledge of how circRNAs regulate cell cycle-related proteins through the abovementioned mechanisms in different cancers.
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Affiliation(s)
- Pannathon Thamjamrassri
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
- Center of Excellence in Hepatitis and Liver Cancer, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
- Medical Biochemistry Program, Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Chaiyaboot Ariyachet
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
- Center of Excellence in Hepatitis and Liver Cancer, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
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21
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Wu C, Li L, Tang Q, Liao Q, Chen P, Guo C, Zeng Z, Xiong W. Role of m 6A modifications in immune evasion and immunotherapy. Med Oncol 2024; 41:159. [PMID: 38761335 DOI: 10.1007/s12032-024-02402-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 04/29/2024] [Indexed: 05/20/2024]
Abstract
RNA modification has garnered increasing attention in recent years due to its pivotal role in tumorigenesis and immune surveillance. N6-methyladenosine (m6A) modification is the most prevalent RNA modification, which can affect the expression of RNA by methylating adenylate at the sixth N position to regulate the occurrence and development of tumors. Dysregulation of m6A affects the activation of cancer-promoting pathways, destroys immune cell function, maintains immunosuppressive microenvironment, and promotes tumor cell growth. In this review, we delve into the latest insights into how abnormalities in m6A modification in both tumor and immune cells orchestrate immune evasion through the activation of signaling pathways. Furthermore, we explore how dysregulated m6A modification in tumor cells influences immune cells, thereby regulating tumor immune evasion via interactions within the tumor microenvironment (TME). Lastly, we highlight recent discoveries regarding specific inhibitors of m6A modulators and the encapsulation of m6A-targeting nanomaterials for cancer therapy, discussing their potential applications in immunotherapy.
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Affiliation(s)
- Chunyu Wu
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Lvyuan Li
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Qiling Tang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Qianjin Liao
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Pan Chen
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Can Guo
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.
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22
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Yin C, Yu J, Liu G, He J, Wu P. Riddle of the Sphinx: Emerging role of circular RNAs in cervical cancer. Pathol Res Pract 2024; 257:155315. [PMID: 38653090 DOI: 10.1016/j.prp.2024.155315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Cervical cancer is a prominent cause of cancer-related mortality among women, with recent attention directed toward exploring the involvement of circular RNAs (circRNAs) in this particular cancer. CircRNAs, characterized by a covalently closed loop structure, belong to a class of single-stranded non-coding RNA (ncRNA) molecules that play crucial roles in cancer development and progression through diverse mechanisms. The abnormal expression of circRNAs in vivo is significantly associated with the development of cervical cancer. Notably, circRNAs actively interact with miRNAs in cervical cancer, leading to the regulation of diverse signaling pathways, and they can contribute to cancer hallmarks such as self-sufficiency in growth signals, insensitivity to antigrowth signals, limitless proliferation, evading apoptosis, tissue invasion and metastasis, and sustained angiogenesis. Moreover, the distinctive biomedical attributes exhibited by circRNAs, including their abundance, conservation, and stability in body fluids, position them as promising biomarkers for various cancers. In this review, we elucidate the tremendous potential of circRNAs as diagnostic markers or therapeutic targets in cervical cancer by expounding upon their biogenesis, characteristics, functions, and databases, highlighting the novel advances in the signaling pathways associated with circRNAs in cervical cancer.
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Affiliation(s)
- Caiyan Yin
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Hengyang Maternal and Child Health Hospital, Hengyang, Hunan 421001, China
| | - Jianwei Yu
- Department of Public Health Laboratory Sciences, College of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Gaohua Liu
- The First Affiliated Hospital, Institute of Clinical Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Jun He
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Department of Public Health Laboratory Sciences, College of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
| | - Peng Wu
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Hengyang Maternal and Child Health Hospital, Hengyang, Hunan 421001, China.
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23
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Zhou Q, Song W, Li X, Lin J, Zhu C, Cao L, Li W, Lin S. N6-Methyladenosine reader HNRNPC-mediated downregulation of circITCH prevents miR-224-3p sequestering and contributes to tumorigenesis in nasopharyngeal carcinoma. ENVIRONMENTAL TOXICOLOGY 2024; 39:2893-2907. [PMID: 38299319 DOI: 10.1002/tox.24139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/20/2023] [Accepted: 12/29/2023] [Indexed: 02/02/2024]
Abstract
BACKGROUND N6-Methyladenosine (m6A) RNA methylation modulators are implicated in nasopharyngeal carcinoma (NPC). Circular RNAs (circRNAs) stimulate/inhibit the development of NPC by sponging microRNAs (miRNAs). Herein, m6A modifications affecting the circRNA/miRNA axis in NPC were explored. METHODS Twenty prognostic m6A RNA methylation regulators were identified from 504 head/neck squamous cell carcinoma and 44 normal samples from The Cancer Genome Atlas (TCGA). Differentially expressed miRNAs were screened from the TCGA and Gene Expression Omnibus (GEO) databases. RNA-binding protein (RBP)-circRNA and circRNA-miRNA interactive pairs were verified using RBPmap and RNAhybrid, respectively. The RBP/circRNA/miRNA network was constructed using Cytoscape. Furthermore, CircITCH (hsa_circ_00059948), HNRNPC, and miR-224-3p expressions were detected by western blotting and quantitative polymerase chain reaction. The role of circITCH in NPC was examined using apoptosis, scratch wound healing, transwell invasion, and cell counting kit-8 assays. Finally, CircITCH-miR-224-3p and circITCH-HNRNPC interactions were assessed by dual-luciferase reporter and RNA-immunoprecipitation (RIP) assays, respectively. RESULTS Bioinformatics analysis revealed that high pathological grade, late-stage tumors, and low survival were associated with increased HNRNPC expression. MiR-224-3p was upregulated in NPC and sequestered by circITCH. Construction of the RBP/circRNA/miRNA network highlighted the HNRNPC/circITCH/miR-224-3p axis. In vitro experiments demonstrated decreased circITCH expression and increased HNRNPC and miR-224-3p expressions in NPC. In NPC cells overexpressing circITCH, HNRNPC and miR-224-3p expressions were significantly decreased. Dual-luciferase assays demonstrated a targeting relationship between circITCH and miR-224-3p, and RIP assays demonstrated interaction of HNRNPC targets with circITCH. CONCLUSION CircITCH overexpression inhibited NPC progression by sequestering miR-224-3p, and HNRNPC reduced circITCH expression through direct interaction.
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Affiliation(s)
- Qiang Zhou
- Department of Otolaryngology, The Third Affiliated Hospital of Wenzhou Medical University (Ruian People's Hospital), Wenzhou, China
| | - Wei Song
- Department of Otolaryngology, The Third Affiliated Hospital of Wenzhou Medical University (Ruian People's Hospital), Wenzhou, China
| | - Xianhui Li
- Department of Otolaryngology, The Third Affiliated Hospital of Wenzhou Medical University (Ruian People's Hospital), Wenzhou, China
| | - Jinyan Lin
- Department of Otolaryngology, The Third Affiliated Hospital of Wenzhou Medical University (Ruian People's Hospital), Wenzhou, China
| | - Chuansai Zhu
- Department of Otolaryngology, The Third Affiliated Hospital of Wenzhou Medical University (Ruian People's Hospital), Wenzhou, China
| | - Longhe Cao
- Department of Otolaryngology, The Third Affiliated Hospital of Wenzhou Medical University (Ruian People's Hospital), Wenzhou, China
| | - Wanqing Li
- Department of Otolaryngology, The Third Affiliated Hospital of Wenzhou Medical University (Ruian People's Hospital), Wenzhou, China
| | - Sen Lin
- Department of Otolaryngology, The Third Affiliated Hospital of Wenzhou Medical University (Ruian People's Hospital), Wenzhou, China
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24
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Qin X, Chen H, Zheng W, Zhu X, Gao J. METTL3 modification of circStk4 affects mouse glomerular messangial cell autophagy, proliferation and apotosis by regulating miR-133a-3p/C1 axis. Cell Signal 2024; 117:111091. [PMID: 38331014 DOI: 10.1016/j.cellsig.2024.111091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/30/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
OBJECTIVE The study aimed to explore the impact of N6-methyladenosine (m6A) modification in circStk4 on glomerular mesangial cells (GMCs) autophagy, proliferation and apoptosis. METHODS The interactions between circStk4 and miR-133a-3p, miR-133a-3p and C1 were demonstrated through luciferase reporter assays. The circStk4 localization was analyzed using fluorescence in situ hybridization and nuclear/cytosol fractionation assays. Colorimetric assays, MeRIP-qPCR, and western blot (WB) were employed to confirm the m6A modification of circStk4 and identify the key methylation enzyme. RT-qPCR was conducted to determine the impact of METTL3 on the circStk4 RNA expression. Additionally, CCK-8, flow cytometry, transmission electron microscopy, immunofluorescence, WB and RT-qPCR were employed to investigate the effects of METTL3 or circStk4 on the proliferation, autophagy and apoptosis of GMCs. Enzyme-linked immunosorbent assay was utilized to assess the inflammatory factors. RESULTS m6A modifications were found in circStk4 and METTL3 was a key methylating enzyme. Furthermore, it was observed that circStk4 competitively bound miR-133a-3p and increased C1 levels. Silencing circStk4 resulted in decreased GMCs proliferation, increased autophagy and apoptosis, and reduced inflammation levels. Additionally, METTL3 played a role in inhibiting GMCs proliferation and promoting autophagy and apoptosis by regulating the circStk4 expression. On verifying the interplay between autophagy, proliferation and apoptosis, and found that the inhibition of autophagy led to an increase in cell proliferation and a decrease in apoptosis. CONCLUSION m6A modification of circStk4 mediated by METTL3 influenced circStk4 expression and impacted autophagy, proliferation and apoptosis in GMCs via the miR-133a-3p/C1 axis. This discovery introduces a novel therapeutic approach for CGN treatment.
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Affiliation(s)
- Xiujuan Qin
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Huiyu Chen
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China; College of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui 230011, China
| | - Wenjia Zheng
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China; College of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui 230011, China
| | - Xiaoli Zhu
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China
| | - Jiarong Gao
- Department of Pharmacy, The First Affiliated Hospital of Anhui University of Chinese Medicine, 117 Meishan Road, Hefei, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China.
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25
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Kawiak A. Molecular Research and Treatment of Breast Cancer 2.0. Int J Mol Sci 2024; 25:3932. [PMID: 38612742 PMCID: PMC11011694 DOI: 10.3390/ijms25073932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 03/18/2024] [Indexed: 04/14/2024] Open
Abstract
Breast cancer is the primary contributor to cancer-related deaths among women [...].
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Affiliation(s)
- Anna Kawiak
- Intercollegiate Faculty of Biotechnology, University of Gdansk, Abrahama 58, 80-307 Gdansk, Poland
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26
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Wu X, Fang Y, Gu Y, Shen H, Xu Y, Xu T, Shi R, Xu D, Zhang J, Leng K, Shu Y, Ma P. Fat mass and obesity-associated protein (FTO) mediated m 6A modification of circFAM192A promoted gastric cancer proliferation by suppressing SLC7A5 decay. MOLECULAR BIOMEDICINE 2024; 5:11. [PMID: 38556586 PMCID: PMC10982225 DOI: 10.1186/s43556-024-00172-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 01/21/2024] [Indexed: 04/02/2024] Open
Abstract
Gastric cancer (GC) is a common malignant tumor worldwide, especially in East Asia, with high incidence and mortality rate. Epigenetic modifications have been reported to participate in the progression of gastric cancer, among which m6A is the most abundant and important chemical modification in RNAs. Fat mass and obesity-associated protein (FTO) is the first identified RNA demethylase but little is known about its role in gastric cancer. In our study, data from TCGA and clinical samples showed that FTO was highly expressed in gastric cancer tissues. Kaplan-Meier plotter suggested that patients with the high level of FTO had a poor prognosis. In vitro and in vivo experiments confirmed the role of FTO in promoting gastric cancer cell proliferation. Mechanistically, we found that FTO bound to circFAM192A at the specific site and removed the m6A modification in circFAM192A, protecting it from degradation. CircFAM192A subsequently interacted with the leucine transporter solute carrier family 7 member 5 (SLC7A5) and enhancing its stability. As a result, an increased amount of SLC7A5 was on the membrane, which facilitated leucine uptake and activated the mTOR signaling pathway. Therefore, our study demonstrated that FTO promoted gastric cancer proliferation through the circFAM192A/SLC7A5 axis in the m6A-dependent manner. Our study shed new light on the role of FTO in gastric cancer progression.
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Affiliation(s)
- Xi Wu
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Yuan Fang
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Yunru Gu
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Haoyang Shen
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Yangyue Xu
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Tingting Xu
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Run Shi
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Duo Xu
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Jingxin Zhang
- Department of General Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang Clinic School of Nanjing Medical University, Zhenjiang, People's Republic of China
| | - Kai Leng
- Department of Medical Informatics, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China
| | - Yongqian Shu
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China.
| | - Pei Ma
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, People's Republic of China.
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, China.
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27
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Liu X, Xiong H, Lu M, Liu B, Hu C, Liu P. Trans-3, 5, 4'-trimethoxystilbene restrains non-small-cell lung carcinoma progression via suppressing M2 polarization through inhibition of m6A modified circPACRGL-mediated Hippo signaling. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 126:155436. [PMID: 38394728 DOI: 10.1016/j.phymed.2024.155436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/17/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND Non-small-cell lung carcinoma (NSCLC) accounts for ∼85% of all lung carcinomas. Trans-3,5,4'-trimethoxystilbene (TMS) shows strong anti-tumor activity and induces tumor cell apoptosis. However, its function and mechanism in NSCLC still require investigation. METHODS PMA was used to treated THP-1 cells for macrophage differentiation. The abundance and m6A modification of circPACRGL were examined with qRT-PCR and MeRIP. Colony forming, transwell, wound healing, and Western blotting assays were applied to analyze proliferation, invasion, migration, and EMT. Macrophage polarization was determined through flow cytometry analysis of M1 and M2 markers. The interplay between circPACRGL, IGF2BP2 and YAP1 was validated by RNA pull-down and RIP assays. Mice received subcutaneous injection of NSCLC cells as a mouse model of subcutaneous tumor. RESULTS CircPACRGL was upregulated in NSCLC cells, but it was reduced by TMS treatment. CircPACRGL depletion blocked proliferation, migration, and invasion in H1299 and H1975 cells. TMS suppressed these malignant behaviors, but it was abolished by circPACRGL overexpression. In addition, NSCLC-derived exosomes delivered circPACRGL into THP-1 cells to promote its M2 polarization, but TMS inhibited these effects by downregulating exosomal circPACRGL. Mechanically, exosomal circPACRGL bound to IGF2BP2 to improve the stability of YAP1 mRNA and regulate Hippo signaling in polarized THP-1 cells. TMS inhibited NSCLC growth via suppressing Hippo signaling and M2 polarization in vivo. CONCLUSION TMS restrains M2 polarization and NSCLC progression by reducing circPACRGL and inhibiting exosomal circPACRGL-mediated Hippo signaling. Thus, these findings provide a novel mechanism underlying NSCLC progression and potential therapeutic targets.
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Affiliation(s)
- Xiaoyu Liu
- Department of Oncology, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, PR China
| | - Hui Xiong
- Department of Oncology, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, PR China
| | - Min Lu
- Department of Oncology, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, PR China
| | - Bin Liu
- Department of Oncology, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, PR China
| | - Chunhong Hu
- Department of Oncology, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, PR China
| | - Ping Liu
- Department of Oncology, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, PR China.
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Ma H, Hong Y, Xu Z, Weng Z, Yang Y, Jin D, Chen Z, Yue J, Zhou X, Xu Z, Fei F, Li J, Song W. N 6-methyladenosine (m 6A) modification in hepatocellular carcinoma. Biomed Pharmacother 2024; 173:116365. [PMID: 38452654 DOI: 10.1016/j.biopha.2024.116365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 03/09/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the deadliest cancers of human, the tumor-related death of which ranks third among the common malignances. N6-methyladenosine (m6A) methylation, the most abundant internal modification of RNA in mammals, participates in the metabolism of mRNA and interrelates with ncRNAs. In this paper, we overviewed the complex function of m6A regulators in HCC, including regulating the tumorigenesis, progression, prognosis, stemness, metabolic reprogramming, autophagy, ferroptosis, drug resistance and tumor immune microenvironment (TIME). Furthermore, we elucidated the interplay between m6A modification and non-coding RNAs (ncRNAs), including microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs). Finally, we summarized the potential of m6A regulators as diagnostic biomarkers. What's more, we reviewed the inhibitors targeting m6A enzymes as promising therapeutic targets of HCC. We aimed to help understand the function of m6A methylation in HCC systematically and comprehensively so that more effective strategies for HCC treatment will be developed.
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Affiliation(s)
- Hehua Ma
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Yuxin Hong
- Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zhenzhen Xu
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Zuyi Weng
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Yuanxun Yang
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Dandan Jin
- Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zhiyou Chen
- Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jing Yue
- Department of Gynaecology and Obstetrics, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Xuan Zhou
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Zhi Xu
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Fei Fei
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Juan Li
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China.
| | - Wei Song
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China.
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Yi J, Ma X, Ying Y, Liu Z, Tang Y, Shu X, Sun J, Wu Y, Lu D, Wang X, Luo J, Liu B, Zheng X, Lin Y, Li J, Xie L. N6-methyladenosine-modified CircPSMA7 enhances bladder cancer malignancy through the miR-128-3p/MAPK1 axis. Cancer Lett 2024; 585:216613. [PMID: 38211649 DOI: 10.1016/j.canlet.2024.216613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/13/2024]
Abstract
Several studies have indicated that circular RNAs (circRNAs) play vital roles in the progression of various diseases, including bladder cancer (BCa). However, the underlying mechanisms by which circRNAs drive BCa malignancy remain unclear. In this study, we identified a novel circRNA, circPSMA7 (circbaseID:has_circ_0003456), showing increased expression in BCa cell lines and tissues, by integrating the reported information with circRNA-seq and qRT-PCR. We revealed that circPSMA7 is associated with a higher tumor grade and stage in BCa. M6A modification was identified in circPSMA7, and IGF2BP3 recognized this modification and stabilized circPSMA7, subsequently increasing the circPSMA7 expression. In vitro and in vivo experiments showed that circPSMA7 promoted BCa proliferation and metastasis by regulating the cell cycle and EMT processes. CircPSMA7 acted as a sponge for miR-128-3p, which showed antitumor effects in BCa cell lines, increasing the expression of MAPK1. The tumor proliferation and metastasis suppression induced by silencing circPSMA7 could be partly reversed by miR-128-3p inhibition. Thus, the METTL3/IGF2BP3/circPSMA7/miR-128-3p/MAPK1 axis plays a critical role in BCa progression. Furthermore, circPSMA7 may be a potential diagnostic biomarker and novel therapeutic target for patients with BCa.
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Affiliation(s)
- Jiahe Yi
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Xueyou Ma
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Yufan Ying
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Zixiang Liu
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Yijie Tang
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Xuan Shu
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Jiazhu Sun
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Yuqing Wu
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Dingheng Lu
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Xiao Wang
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Jindan Luo
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Ben Liu
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Xiangyi Zheng
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China
| | - Yiwei Lin
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China.
| | - Jiangfeng Li
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China.
| | - Liping Xie
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, 310058 China.
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Chen S, Duan X, He Y, Chen W. METTL3 promotes osteogenic differentiation of human umbilical cord mesenchymal stem cells by up-regulating m6A modification of circCTTN. Biosci Rep 2024; 44:BSR20231186. [PMID: 38358895 PMCID: PMC10932744 DOI: 10.1042/bsr20231186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 02/10/2024] [Accepted: 02/13/2024] [Indexed: 02/17/2024] Open
Abstract
BACKGROUND Human umbilical cord mesenchymal stem cells (hUCMSCs) are promising seed cells in bone tissue engineering. circRNA and N6-methyladenosine (m6A) RNA methylation play important roles in osteogenic differentiation. Here, we investigated the potential relevance of a critical circRNA, hsa_circ_0003376 (circCTTN), and methyltransferase-like 3 (METTL3) in osteogenic differentiation of hUCMSCs. METHODS Expression of circCTTN after hUCMSC osteogenic induction was detected by qRT-PCR. Three databases (RMBase v2.0, BERMP, and SRAMP) were used to predict m6A sites of circCTTN. RNA was enriched by methylated RNA immunoprecipitation (MeRIP), followed by quantitative real-time polymerase chain reaction to detect m6A level of circCTTN after METTL3 overexpression and osteogenic induction. RNA pull-down, Western blotting, and protein mass spectrometry were performed to investigate the potential mechanisms by which METTL3 promoted m6A modification of circCTTN. Bioinformatic analyses based on database (STRING) search and co-immunoprecipitation were used to analyze the proteins that interacted with METTL3. RESULTS Overexpression of METTL3 promoted osteogenic differentiation of hUCMSCs and increased m6A level of circCTTN. Two potential m6A modification sites of circCTTN were predicted. No direct interaction between METTL3 and circCTTN was observed. Thirty-one proteins were pulled down by probes specific for circCTTN, including NOP2, and two m6A reading proteins, EIF3A and SND1. Bioinformatics analysis and co-immunoprecipitation showed that METTL3 interacted with EIF3A indirectly through NOP2. CONCLUSIONS METTL3 promotes the osteogenic differentiation of hUCMSCs by increasing the m6A level of circCTTN. However, METTL3 does not bind directly to circCTTN. METTL3 interacts with circCTTN indirectly through NOP2 and EIF3A.
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Affiliation(s)
- Shujiang Chen
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China school of Stomatology, Sichuan University, Chengdu, Sichuan, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Xiaoqiong Duan
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Yanjin He
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China school of Stomatology, Sichuan University, Chengdu, Sichuan, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Wenchuan Chen
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China school of Stomatology, Sichuan University, Chengdu, Sichuan, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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Hu X, Sun Y, Wang S, Zhao H, Wei Y, Fu J, Huang Y, Wu W, Li J, Liu J, Gong S, Zhao Q, Wang L, Jiang R, Song X, Yuan P. CircALMS1 Alleviates Pulmonary Microvascular Endothelial Cell Dysfunction in Pulmonary Hypertension. J Am Heart Assoc 2024; 13:e031867. [PMID: 38497483 PMCID: PMC11009991 DOI: 10.1161/jaha.123.031867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 02/21/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND Circular RNAs can serve as regulators influencing the development of pulmonary hypertension (PH). However, their function in pulmonary vascular intimal injury remains undefined. Thus, we aimed to identify specifically expressed circular RNAs in pulmonary microvascular endothelial cells (PMECs) under hypoxia and PH. METHODS AND RESULTS Deep RNA sequencing and quantitative real-time polymerase chain reaction revealed that circALMS1 (circular RNA Alstrom syndrome protein 1) was reduced in human PMECs under hypoxia (P<0.0001). Molecular biology and histopathology experiments were used to elucidate the roles of circALMS1 in regulating PMEC dysfunction among patients with PH. The circALMS1 expression was decreased in the plasma of patients with PH (P=0.0315). Patients with lower circALMS1 levels had higher risk of death (P=0.0006). Moreover, the circALMS1 overexpression of adeno-associated viruses improved right ventricular function and reduced pulmonary vascular remodeling in monocrotaline-PH and sugen/hypoxia-PH rats (P<0.05). Furthermore, circALMS1 overexpression promoted apoptosis and inhibited PMEC proliferation and migration under hypoxia by directly downregulating miR-17-3p (P<0.05). Dual luciferase assay confirmed the direct binding of circALMS1 to miR-17-3p and miR-17-3p binding to its target gene YT521-B homology domain-containing family protein 2 (YTHDF2) (P<0.05). The YTHDF2 levels were also downregulated in hypoxic PMECs (P<0.01). The small interfering RNA YTHDF2 reversed the effects of miR-17-3p inhibitors on PMEC proliferation, migration, and apoptosis. Finally, the results indicated that, although YTHDF2, as an N(6)-methyladenosine reader protein, contributes to the degradation of many circular RNAs, it could not regulate the circALMS1 levels in PMECs (P=0.9721). CONCLUSIONS Our study sheds new light on circALMS1-regulated dysfunction of PMECs by the miR-17-3p/YTHDF2 pathway under hypoxia and provides insights into the underlying pathogenesis of PH.
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Affiliation(s)
- Xiaoyi Hu
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Yuanyuan Sun
- Department of Respiratory and Critical Care MedicineShandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanChina
| | - Shang Wang
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Hui Zhao
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
- Institute of Bismuth Science, University of Shanghai for Science and TechnologyShanghaiChina
| | - Yaqin Wei
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
- Department of GeriatricsShanghai Institute of Geriatrics, Huadong Hospital, Fudan UniversityShanghaiChina
| | - Jiaqi Fu
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
- Institute of Health Science and EngineeringUniversity of Shanghai Science and TechnologyShanghaiChina
| | - Yuxia Huang
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Wenhui Wu
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Jinling Li
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Jinming Liu
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Sugang Gong
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Qinhua Zhao
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Lan Wang
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Rong Jiang
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Xiao Song
- Department of Thoracic SurgeryShanghai Pulmonary Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Ping Yuan
- Department of Cardio‐Pulmonary Circulation, Shanghai Pulmonary Hospital, School of MedicineTongji UniversityShanghaiChina
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Zhang Y, Liu Z, Zhong Z, Ji Y, Guo H, Wang W, Chen C. A tumor suppressor protein encoded by circKEAP1 inhibits osteosarcoma cell stemness and metastasis by promoting vimentin proteasome degradation and activating anti-tumor immunity. J Exp Clin Cancer Res 2024; 43:52. [PMID: 38383479 PMCID: PMC10880370 DOI: 10.1186/s13046-024-02971-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/31/2024] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND Osteosarcoma (OS) is one of most commonly diagnosed bone cancer. Circular RNAs (circRNAs) are a class of highly stable non-coding RNA, the majority of which have not been characterized functionally. The underlying function and molecular mechanisms of circRNAs in OS have not been fully demonstrated. METHOD Microarray analysis was performed to identify circRNAs that are differentially-expressed between OS and corresponding normal tissues. The biological function of circKEAP1 was confirmed in vitro and in vivo. Mass spectrometry and western blot assays were used to identify the circKEAP1-encoded protein KEAP1-259aa. The molecular mechanism of circKEAP1 was investigated by RNA sequencing and RNA immunoprecipitation analyses. RESULTS Here, we identified a tumor suppressor circKEAP1, originating from the back-splicing of exon2 of the KEAP1 gene. Clinically, circKEAP1 is downregulated in OS tumors and associated with better survival in cancer patients. N6-methyladenosine (m6A) at a specific adenosine leads to low expression of circKEAP1. Further analysis revealed that circKEAP1 contained a 777 nt long ORF and encoded a truncated protein KEAP1-259aa that reduces cell proliferation, invasion and tumorsphere formation of OS cells. Mechanistically, KEAP1-259aa bound to vimentin in the cytoplasm to promote vimentin proteasome degradation by interacting with the E3 ligase ARIH1. Moreover, circKEAP1 interacted with RIG-I to activate anti-tumor immunity via the IFN-γ pathway. CONCLUSION Taken together, our findings characterize a tumor suppressor circKEAP1 as a key tumor suppressor regulating of OS cell stemness, proliferation and migration, providing potential therapeutic targets for treatment of OS.
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Affiliation(s)
- Ying Zhang
- Department of Radiotherapy, Cancer Hospital of Shantou University Medical College, No. 7 Raoping Road, Shantou, Guangdong, 515041, PR China.
- Sports Medicine Center, First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China.
| | - Zhaoyong Liu
- Department of Orthopaedics, First Affiliated Hospital of Shantou University Medical College, No. 57 Changping Road, Shantou, Guangdong, 515041, China
- Sports Medicine Center, First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China
| | - Zhigang Zhong
- Sports Medicine Center, First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China
- Sports Medicine Institute, Shantou University Medical College, Shantou, 515041, China
| | - Yanchen Ji
- Department of Radiotherapy, Cancer Hospital of Shantou University Medical College, No. 7 Raoping Road, Shantou, Guangdong, 515041, PR China
| | - Huancheng Guo
- Department of Orthopaedics, First Affiliated Hospital of Shantou University Medical College, No. 57 Changping Road, Shantou, Guangdong, 515041, China
| | - Weidong Wang
- Department of Orthopaedics, Cancer Hospital of Shantou University Medical College, No. 7 Raoping Road, Shantou, Guangdong, 515041, China
| | - Chuangzhen Chen
- Department of Radiotherapy, Cancer Hospital of Shantou University Medical College, No. 7 Raoping Road, Shantou, Guangdong, 515041, PR China
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Huang B, Ren J, Ma Q, Yang F, Pan X, Zhang Y, Liu Y, Wang C, Zhang D, Wei L, Ran L, Zhao H, Liang C, Wang X, Wang S, Li H, Ning H, Ran A, Li W, Wang Y, Xiao B. A novel peptide PDHK1-241aa encoded by circPDHK1 promotes ccRCC progression via interacting with PPP1CA to inhibit AKT dephosphorylation and activate the AKT-mTOR signaling pathway. Mol Cancer 2024; 23:34. [PMID: 38360682 PMCID: PMC10870583 DOI: 10.1186/s12943-024-01940-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 01/12/2024] [Indexed: 02/17/2024] Open
Abstract
BACKGROUND Clear cell renal cell carcinoma (ccRCC) is the most prevalent kidney cancer with high aggressive phenotype and poor prognosis. Accumulating evidence suggests that circRNAs have been identified as pivotal mediators in cancers. However, the role of circRNAs in ccRCC progression remains elusive. METHODS The differentially expressed circRNAs in 4 paired human ccRCC and adjacent noncancerous tissues ccRCC were screened using circRNA microarrays and the candidate target was selected based on circRNA expression level using weighted gene correlation network analysis (WGCNA) and the gene expression omnibus (GEO) database. CircPDHK1 expression in ccRCC and adjacent noncancerous tissues (n = 148) were evaluated along with clinically relevant information. RT-qPCR, RNase R digestion, and actinomycin D (ActD) stability test were conducted to identify the characteristics of circPDHK1. The subcellular distribution of circPDHK1 was analyzed by subcellular fractionation assay and fluorescence in situ hybridization (FISH). Immunoprecipitation-mass spectrometry (IP-MS) and immunofluorescence (IF) were employed to evaluate the protein-coding ability of circPDHK1. ccRCC cells were transfected with siRNAs, plasmids or lentivirus approach, and cell proliferation, migration and invasion, as well as tumorigenesis and metastasis in nude mice were assessed to clarify the functional roles of circPDHK1 and its encoded peptide PDHK1-241aa. RNA-sequencing, western blot analysis, immunoprecipitation (IP) and chromatin immunoprecipitation (ChIP) assays were further employed to identify the underlying mechanisms regulated by PDHK1-241aa. RESULTS CircPDHK1 was upregulated in ccRCC tissues and closely related to WHO/ISUP stage, T stage, distant metastasis, VHL mutation and Ki-67 levels. CircPDHK1 had a functional internal ribosome entry site (IRES) and encoded a novel peptide PDHK1-241aa. Functionally, we confirmed that PDHK1-241aa and not the circPDHK1 promoted the proliferation, migration and invasion of ccRCC. Mechanistically, circPDHK1 was activated by HIF-2A at the transcriptional level. PDHK1-241aa was upregulated and interacted with PPP1CA, causing the relocation of PPP1CA to the nucleus. This thereby inhibited AKT dephosphorylation and activated the AKT-mTOR signaling pathway. CONCLUSIONS Our data indicated that circPDHK1-encoded PDHK1-241aa promotes ccRCC progression by interacting with PPP1CA to inhibit AKT dephosphorylation. This study provides novel insights into the multiplicity of circRNAs and highlights the potential use of circPDHK1 or PDHK1-241aa as a therapeutic target for ccRCC.
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Affiliation(s)
- Bo Huang
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, 563006, P.R. China
| | - Junwu Ren
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Qiang Ma
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Feifei Yang
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Xiaojuan Pan
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Yuying Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Yuying Liu
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Cong Wang
- Department of Urology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Dawei Zhang
- Department of Urology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Ling Wei
- Department of Urology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Lingyu Ran
- Department of Kidney, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Hongwen Zhao
- Department of Kidney, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Ce Liang
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Xiaolin Wang
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Shiming Wang
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Haiping Li
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Hao Ning
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Ai Ran
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China
| | - Wei Li
- Department of Pharmacy, Chongqing University Cancer Hospital, Chongqing, 400030, P.R. China.
| | - Yongquan Wang
- Department of Urology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China.
| | - Bin Xiao
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, P.R. China.
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Yang B, Wang YW, Zhang K. Interactions between circRNA and protein in breast cancer. Gene 2024; 895:148019. [PMID: 37984538 DOI: 10.1016/j.gene.2023.148019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/10/2023] [Accepted: 11/17/2023] [Indexed: 11/22/2023]
Abstract
Circular RNA (circRNA) is a newly discovered endogenous non-coding RNA that plays important roles in the occurrence and development of various cancers. Current research indicates that circRNA can inhibit the function of miRNA by acting as an miRNA sponge, interacting with proteins, and being translated into proteins. Most current research focuses on the circRNA-miRNA interaction; however, few studies have investigated the interaction between circRNAs and RNA binding proteins (RBPs) in breast cancer. In this review, we systematically summarize the potential molecular mechanism of the circRNA-protein interaction in breast cancer. Specifically, we elaborate on the direct interaction between circRNAs and proteins in breast cancer, including the functions of circRNA as protein sponges, decoys, and scaffolds, thereby affecting the progression of breast cancer. We also discuss the indirect interaction between circRNAs and proteins in breast cancer in which RBPs, transcription factors and m6A modifying enzymes could in turn regulate the expression and formation of circRNA. Finally, we discuss the potential application of circRNA-protein interaction for treating breast cancer, providing a reference for further research in this field.
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Affiliation(s)
- Bin Yang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, People's Republic of China
| | - Ya-Wen Wang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, People's Republic of China
| | - Kai Zhang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, People's Republic of China.
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Surendran A, Huang C, Liu L. Circular RNAs and their roles in idiopathic pulmonary fibrosis. Respir Res 2024; 25:77. [PMID: 38321530 PMCID: PMC10848557 DOI: 10.1186/s12931-024-02716-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/29/2024] [Indexed: 02/08/2024] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive and fatal lung disease with limited treatment options. Circular RNAs (circRNAs) have emerged as a novel class of non-coding RNAs with diverse functions in cellular processes. This review paper aims to explore the potential involvement of circRNAs in the pathogenesis of IPF and their diagnostic and therapeutic implications. We begin by providing an overview of the epidemiology and risk factors associated with IPF, followed by a discussion of the pathophysiology underlying this complex disease. Subsequently, we delve into the history, types, biogenesis, and functions of circRNAs and then emphasize their regulatory roles in the pathogenesis of IPF. Furthermore, we examine the current methodologies for detecting circRNAs and explore their diagnostic applications in IPF. Finally, we discuss the potential utility of circRNAs in the treatment of IPF. In conclusion, circRNAs hold great promise as novel biomarkers and therapeutic targets in the management of IPF.
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Affiliation(s)
- Akshaya Surendran
- The Lundberg-Kienlen Lung Biology and Toxicology Laboratory, Department of Physiological Sciences, Oklahoma State University, 264 McElroy Hall, Stillwater, OK, 74078, USA
- Oklahoma Center for Respiratory and Infectious Diseases, Oklahoma State University, Stillwater, Oklahoma, USA
| | - Chaoqun Huang
- The Lundberg-Kienlen Lung Biology and Toxicology Laboratory, Department of Physiological Sciences, Oklahoma State University, 264 McElroy Hall, Stillwater, OK, 74078, USA
- Oklahoma Center for Respiratory and Infectious Diseases, Oklahoma State University, Stillwater, Oklahoma, USA
| | - Lin Liu
- The Lundberg-Kienlen Lung Biology and Toxicology Laboratory, Department of Physiological Sciences, Oklahoma State University, 264 McElroy Hall, Stillwater, OK, 74078, USA.
- Oklahoma Center for Respiratory and Infectious Diseases, Oklahoma State University, Stillwater, Oklahoma, USA.
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Yu L, Gao Y, Bao Q, Xu M, Lu J, Du W. Effects of N6-methyladenosine modification on metabolic reprogramming in digestive tract tumors. Heliyon 2024; 10:e24414. [PMID: 38293446 PMCID: PMC10826742 DOI: 10.1016/j.heliyon.2024.e24414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 02/01/2024] Open
Abstract
N6-methyladenosine (m6A), the most abundant RNA modification within cells, participates in various biological and pathological processes, including self-renewal, invasion and proliferation, drug resistance, and stem cell characteristics. The m6A methylation plays a crucial role in tumors by regulating multiple RNA processes such as transcription, processing, and translation. Three protein types are primarily involved in m6A methylation: methyltransferases (such as METTL3, METTL14, ZC3H13, and KIAA1429), demethylases (such as FTO, ALKBH5), and RNA-binding proteins (such as the family of YTHDF, YTHDC1, YTHDC2, and IGF2BPs). Various metabolic pathways are reprogrammed in digestive tumors to meet the heightened growth demands and sustain cellular functionality. Recent studies have highlighted the extensive impact of m6A on the regulation of digestive tract tumor metabolism, further modulating tumor initiation and progression. Our review aims to provide a comprehensive understanding of the expression patterns, functional roles, and regulatory mechanisms of m6A in digestive tract tumor metabolism-related molecules and pathways. The characterization of expression profiles of m6A regulatory factors and in-depth studies on m6A methylation in digestive system tumors may provide new directions for clinical prediction and innovative therapeutic interventions.
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Affiliation(s)
- Liang Yu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yuan Gao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Qiongling Bao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Min Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Juan Lu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Weibo Du
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
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Xie C, Hao X, Yuan H, Wang C, Sharif R, Yu H. Crosstalk Between circRNA and Tumor Microenvironment of Hepatocellular Carcinoma: Mechanism, Function and Applications. Onco Targets Ther 2024; 17:7-26. [PMID: 38283733 PMCID: PMC10812140 DOI: 10.2147/ott.s437536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/30/2023] [Indexed: 01/30/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common aggressive tumors in the world. Despite the availability of various treatments, its prognosis remains poor due to the lack of specific diagnostic indicators and the high heterogeneity of HCC cases. CircRNAs are noncoding RNAs with stable and highly specific expression. Extensive research evidence suggests that circRNAs mediate the pathogenesis and progression of HCC through acting as miRNA sponges, protein modulators, and translation templates. Tumor microenvironment (TME) has become a hotspot of immune-related research in recent years due to its effects on metabolism, secretion and immunity of HCC. Accordingly, understanding the role played by circRNAs in TME is important for the study of HCC. This review will discuss the crosstalk between circRNAs and TME in HCC. In addition, we will discuss the current deficiencies and controversies in research on circRNAs and predict future research directions.
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Affiliation(s)
- Chenxi Xie
- Hepatobiliary Center, Department of Hepatobiliary Surgery, People’s Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Xiaopei Hao
- The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, 450008, People’s Republic of China
| | - Hao Yuan
- Hepatobiliary Center, Department of Hepatobiliary Surgery, People’s Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Chongyu Wang
- The First Clinical Medical College of Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Razinah Sharif
- Center for Healthy Ageing & Wellness, Faculty of Health Sciences, University Kebangsaan Malaysia, Kuala Lumpur, 50300, Malaysia
- Biocompatibility Laboratory, Centre for Research and Instrumentation, University Kebangsaan Malaysia, UKM, Bangi, Selangor Darul Ehsan, 43600, Malaysia
| | - Haibo Yu
- Hepatobiliary Center, Department of Hepatobiliary Surgery, People’s Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
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Wang H, Cai H, Li L. Comprehensive analysis of m6A reader YTHDF2 prognosis, immune infiltration, and related regulatory networks in hepatocellular carcinoma. Heliyon 2024; 10:e23204. [PMID: 38163150 PMCID: PMC10756983 DOI: 10.1016/j.heliyon.2023.e23204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024] Open
Abstract
Background N6-Methyladenosine (m6A) RNA modification is the most prevalent internal modification pattern in eukaryotic mRNAs and plays critical roles in diverse physiological and pathological processes. However, the expression of m6A regulator YTHDF2, its prognostic value, its biological function, its correlation with tumor microenvironment (TME) immune infiltrates, and related regulatory networks in hepatocellular carcinoma (HCC) remain determined. Methods TCGA, GTEx, and GEO databases were used to investigate the expression profile of YTHDF2 in HCC. We performed differentially expressed genes (DEGs) analysis and constructed a PPI network to explore the biological processes of YTHDF2 in HCC. Kaplan-Meier curves and Cox regression analysis were used to assess the prognostic value of YTHDF2 and then a clinical prognostic nomogram was constructed. Additionally, ssGSEA was performed to assess the correlation between YTHDF2 and immune infiltration levels. The TISIDB database was applied to explore the expression of YTHDF2 in immune and molecular subtypes of HCC. GSEA identifies the YTHDF2-related signaling pathways. Finally, we utilized miRNet and starBase database to construct regulatory networks for HCC based on lncRNA-miRNA and miRNA-YTHDF2 interactions. Results YTHDF2 was significantly upregulated in HCC tumor tissues compared with the adjacent normal tissues. HCC patients in the high YTHDF2 expression group had poorer survival. Multivariate Cox analysis suggested that YTHDF2 may be a new independent prognostic indicator for HCC patients, with the prognostic nomogram exhibiting satisfactory results. YTHDF2 expression was significantly correlated with TME immune cell-infiltrating characteristics. Strong correlations were also shown in immune subtypes, molecular subtypes and immune checkpoints. Further analysis revealed that the combination of YTHDF2 expression and immune cell score was considerably associated with survival outcome in HCC patients. GESA analysis demonstrated that high YTHDF2 expression is associated with multiple biological processes and oncogenic pathways. Moreover, 14 possible regulatory networks were constructed, which are associated with HCC progression. Conclusion Our findings revealed that YTHDF2 may serve as a promising prognostic biomarker for HCC and may regulate the tumor immune microenvironment to provide effective therapeutic strategies.
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Affiliation(s)
- Hang Wang
- Shengli Clinical Medical College of Fujian Medical University, Department of Health Management, Fujian Provincial Hospital, Fuzhou, Fujian, China
- Shengli Clinical Medical College of Fujian Medical University, Department of Disease Prevention and Healthcare, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Hui Cai
- Shengli Clinical Medical College of Fujian Medical University, Department of Health Management, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Li Li
- Shengli Clinical Medical College of Fujian Medical University, Department of Health Management, Fujian Provincial Hospital, Fuzhou, Fujian, China
- Shengli Clinical Medical College of Fujian Medical University, Department of Disease Prevention and Healthcare, Fujian Provincial Hospital, Fuzhou, Fujian, China
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Zhang Y, Ling Y, Zhou Y, Shi X, Shen F, Zhou J, Chen Y, Yang F, Gu Y, Wang J. Research Advances in the Roles of N6-Methyladenosine Modification in Ovarian Cancer. Cancer Control 2024; 31:10732748241256819. [PMID: 38755968 PMCID: PMC11102699 DOI: 10.1177/10732748241256819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/18/2024] Open
Abstract
Ovarian cancer (OC) is the most lethal gynecological tumor, characterized by its insidious and frequently recurring metastatic progression. Owing to limited early screening methods, over 70% of OC cases are diagnosed at advanced stages, typically stage III or IV. Recently, N6-methyladenosine (m6A) modification has emerged as a hotspot of epigenetic research, representing a significant endogenous RNA modification in higher eukaryotes. Numerous studies have reported that m6A-related regulatory factors play pivotal roles in tumor development through diverse mechanisms. Moreover, recent studies have indicated the aberrant expression of multiple regulatory factors in OC. Therefore, this paper comprehensively reviews research advancements concerning m6A in OC, aiming to elucidate the regulatory mechanism of m6A-associated regulators on pivotal aspects, such as proliferation, invasion, metastasis, and drug resistance, in OC. Furthermore, it discusses the potential of m6A-associated regulators as early diagnostic markers and therapeutic targets, thus contributing to the diagnosis and treatment of OC.
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Affiliation(s)
- Yuhong Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology of Soochow University, Suzhou, China
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yufeng Ling
- Affiliated Hospital of Medical School, Nanjing University, Nanjing Stomatological Hospital, Nanjing, China
| | - Ying Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology of Soochow University, Suzhou, China
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiu Shi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Fangrong Shen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jinhua Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Youguo Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Fan Yang
- Department of Gynecology and Obstetrics, West China Second Hospital, University of Sichuan, Chengdu, China
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second Hospital, University of Sichuan, Chengdu, China
| | - Yanzheng Gu
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Juan Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, China
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Zeng Q, Liu CH, Ampuero J, Wu D, Jiang W, Zhou L, Li H, Bai L, Romero-Gómez M, Tang H. Circular RNAs in non-alcoholic fatty liver disease: Functions and clinical significance. RNA Biol 2024; 21:1-15. [PMID: 38113132 PMCID: PMC10761141 DOI: 10.1080/15476286.2023.2290769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/11/2023] [Indexed: 12/21/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD), which affects approximately 25% of the global population, is an urgent health issue leading to various metabolic comorbidities. Circular RNAs (circRNAs), covalently closed RNA molecules, are characterized by ubiquity, diversity, stability, and conservatism. Indeed, they participate in various biological processes via distinct mechanisms that could modify the natural history of NAFLD. In this review, we briefly introduce the biogenesis, characteristics, and biological functions of circRNAs. Furthermore, we summarize circRNAs expression profiles in NAFLD by intersecting seven sequencing data sets and describe the cellular roles of circRNAs and their potential advantages as biomarkers of NAFLD. In addition, we emphatically discuss the exosomal non-coding RNA sorting mechanisms and possible functions in recipient cells. Finally, we extensively discuss the potential application of targeting disease-related circRNAs and competing endogenous RNA networks through gain-of-function and loss-of-function approaches in targeted therapy of NAFLD.
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Affiliation(s)
- Qingmin Zeng
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
| | - Chang-Hai Liu
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
| | - Javier Ampuero
- Digestive Diseases Unit, Virgen del Rocío University Hospital. SeLiver group at Institute of Biomedicine of Seville (IBIS: HUVRocío/CSIC/US). University of Seville, Seville, Spain
| | - Dongbo Wu
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy and Center of Infectious Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Jiang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy and Center of Infectious Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Lingyun Zhou
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy and Center of Infectious Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Li
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy and Center of Infectious Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Lang Bai
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy and Center of Infectious Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Manuel Romero-Gómez
- Digestive Diseases Unit, Virgen del Rocío University Hospital. SeLiver group at Institute of Biomedicine of Seville (IBIS: HUVRocío/CSIC/US). University of Seville, Seville, Spain
| | - Hong Tang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy and Center of Infectious Disease, West China Hospital, Sichuan University, Chengdu, China
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Zhong X, Peng Y, Zhang X, Peng L, Ma K, Huang Y, Yang X. m6A-modified circ_0124554 promotes colorectal cancer progression and radioresistance through the miR-1184/LASP1 pathway. Pathol Res Pract 2024; 253:154950. [PMID: 38091882 DOI: 10.1016/j.prp.2023.154950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/23/2023] [Accepted: 11/12/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Circular RNAs (circRNAs) are believed to regulate the progression of various cancers including colorectal cancer (CRC). However, the role and mechanism of circ_0124554 in regulating the sensitivity of CRC to radiation remain unknown. METHODS The RNA levels of circ_0124554, LIM and SH3 protein 1 (LASP1), and methyltransferase 3, N6-adenosine-methyltransferase complex catalytic subunit (METTL3) were detected by quantitative real-time polymerase chain reaction. Protein expression was checked by western blot. Cell proliferation, apoptosis, migration, and invasion were investigated by 5-Ethynyl-2'-deoxyuridine (EdU) assay, flow cytometry analysis, and transwell assay, respectively. The sensitivity of CRC cells to radiation was analyzed by cell colony formation assay. Xenograft mouse model assay was conducted to disclose the role of circ_0001023 in the sensitivity of tumors to radiation in vivo. The binding relationships among circ_0124554, miR-1184 and LASP1 were confirmed by a dual-luciferase reporter assay. m6A RNA immunoprecipitation assay was performed to identify the association of METTL3 with circ_0124554. RESULTS Circ_0124554 expression was upregulated in CRC tissues and cells in comparison with normal colorectal tissues and cells. Circ_0124554 knockdown inhibited proliferation, migration and invasion and promoted apoptosis and radiosensitivity of CRC cells. Moreover, circ_0124554 depletion inhibited tumor formation and improved radiosensitivity in vivo. MiR-1184 was identified as a target miRNA of circ_0124554 and targeted LASP1. Additionally, LASP1 overexpression rescued circ_0124554 knockdown-mediated effects in CRC cells. METTL3 mediated m6A methylation of circ_0124554. Further, circ_0124554 overexpression attenuated METTL3 depletion-induced effects in CRC cells. CONCLUSION m6A-modified circ_0124554 promoted CRC progression and radioresistance by inducing LASP1 expression through interaction with miR-1184.
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Affiliation(s)
- Xi Zhong
- Department of Oncology, People's Hospital of Ningxiang, Changsha City, Hunan Province, China
| | - Yong Peng
- Department of Oncology, People's Hospital of Ningxiang, Changsha City, Hunan Province, China
| | - Ximei Zhang
- Department of Oncology, People's Hospital of Ningxiang, Changsha City, Hunan Province, China
| | - Luogen Peng
- Department of Oncology, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha City, Hunan Province, China
| | - Kaiwen Ma
- Department of Oncology, People's Hospital of Ningxiang, Changsha City, Hunan Province, China
| | - Yong Huang
- Department of Oncology, People's Hospital of Ningxiang, Changsha City, Hunan Province, China
| | - Xianghui Yang
- Department of Oncology, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha City, Hunan Province, China.
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Zhou X, Zhu H, Luo C, Yan Z, Zheng G, Zou X, Zou J, Zhang G. The role of RNA modification in urological cancers: mechanisms and clinical potential. Discov Oncol 2023; 14:235. [PMID: 38117350 PMCID: PMC10733275 DOI: 10.1007/s12672-023-00843-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 12/04/2023] [Indexed: 12/21/2023] Open
Abstract
RNA modification is a post-transcriptional level of regulation that is widely distributed in all types of RNAs, including mRNA, tRNA, rRNA, miRNA, and lncRNA, where N6-methyladenine (m6A) is the most abundant mRNA methylation modification. Significant evidence has depicted that m6A modifications are closely related to human diseases, especially cancer, and play pivotal roles in RNA transcription, splicing, stabilization, and translation processes. The most common urological cancers include prostate, bladder, kidney, and testicular cancers, accounting for a certain proportion of human cancers, with an ever-increasing incidence and mortality. The recurrence, systemic metastasis, poor prognosis, and drug resistance of urologic tumors have prompted the identification of new therapeutic targets and mechanisms. Research on m6A modifications may provide new solutions to the current puzzles. In this review, we provide a comprehensive overview of the key roles played by RNA modifications, especially m6A modifications, in urologic cancers, as well as recent research advances in diagnostics and molecularly targeted therapies.
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Affiliation(s)
- Xuming Zhou
- First Clinical College, Gannan Medical University, Ganzhou, 341000, China
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China
| | - Hezhen Zhu
- First Clinical College, Gannan Medical University, Ganzhou, 341000, China
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China
| | - Cong Luo
- First Clinical College, Gannan Medical University, Ganzhou, 341000, China
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China
| | - Zhaojie Yan
- First Clinical College, Gannan Medical University, Ganzhou, 341000, China
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China
| | - Guansong Zheng
- First Clinical College, Gannan Medical University, Ganzhou, 341000, China
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China
| | - Xiaofeng Zou
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China
- Institute of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China
- Jiangxi Engineering Technology Research Center of Calculi Prevention, Ganzhou, 341000, China
| | - Junrong Zou
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China
- Institute of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China
- Jiangxi Engineering Technology Research Center of Calculi Prevention, Ganzhou, 341000, China
| | - Guoxi Zhang
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China.
- Institute of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China.
- Jiangxi Engineering Technology Research Center of Calculi Prevention, Ganzhou, 341000, China.
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Xie G, Wu T, Ji G, Wu H, Lai Y, Wei B, Huang W. Circular RNA and intervertebral disc degeneration: unravelling mechanisms and implications. Front Mol Biosci 2023; 10:1302017. [PMID: 38192334 PMCID: PMC10773835 DOI: 10.3389/fmolb.2023.1302017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/05/2023] [Indexed: 01/10/2024] Open
Abstract
Low back pain (LBP) is a major public health problem worldwide and a significant health and economic burden. Intervertebral disc degeneration (IDD) is the reason for LBP. However, we have not identified effective therapeutic strategies to address this challenge. With accumulating knowledge on the role of circular RNAs in the pathogenesis of IDD, we realised that circular RNAs (circRNAs) may have tremendous therapeutic potential and clinical application prospects in this field. This review presents an overview of the current understanding of characteristics, classification, biogenesis, and function of circRNAs and summarises the protective and detrimental circRNAs involved in the intervertebral disc that have been studied thus far. This review is aimed to help researchers better understand the regulatory role of circRNAs in the progression of IDD, reveal their clinical therapeutic potential, and provide a theoretical basis for the prevention and targeted treatment of IDD.
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Affiliation(s)
- Guohao Xie
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Tingrui Wu
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Guangju Ji
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hang Wu
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yue Lai
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Bo Wei
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Wenhua Huang
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- Guangdong Medical Innovation Platform for Translation of 3D Printing Application, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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Shi Q, Chu Q, Zeng Y, Yuan X, Wang J, Zhang Y, Xue C, Li L. Non-coding RNA methylation modifications in hepatocellular carcinoma: interactions and potential implications. Cell Commun Signal 2023; 21:359. [PMID: 38111040 PMCID: PMC10726651 DOI: 10.1186/s12964-023-01357-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/14/2023] [Indexed: 12/20/2023] Open
Abstract
RNA methylation modification plays a crucial role as an epigenetic regulator in the oncogenesis of hepatocellular carcinoma (HCC). Numerous studies have investigated the molecular mechanisms underlying the methylation of protein-coding RNAs in the progression of HCC. Beyond their impact on mRNA, methylation modifications also influence the biological functions of non-coding RNAs (ncRNAs). Here, we present an advanced and comprehensive overview of the interplay between methylation modifications and ncRNAs in HCC, with a specific focus on their potential implications for the tumor immune microenvironment. Moreover, we summarize promising therapeutic targets for HCC based on methylation-related proteins. In the future, a more profound investigation is warranted to elucidate the effects of ncRNA methylation modifications on HCC pathogenesis and devise valuable intervention strategies. Video Abstract.
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Affiliation(s)
- Qingmiao Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Qingfei Chu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yifan Zeng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Xin Yuan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Jinzhi Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yaqi Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Chen Xue
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250000, China.
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Sun W, Zhou S, Peng L, Liu Y, Cheng D, Wang Y, Ni C. CircZNF609 regulates pulmonary fibrosis via miR-145-5p/KLF4 axis and its translation function. Cell Mol Biol Lett 2023; 28:105. [PMID: 38105235 PMCID: PMC10726587 DOI: 10.1186/s11658-023-00518-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/30/2023] [Indexed: 12/19/2023] Open
Abstract
BACKGROUND Pulmonary fibrosis is a growing clinical problem that develops as a result of abnormal wound healing, leading to breathlessness, pulmonary dysfunction and ultimately death. However, therapeutic options for pulmonary fibrosis are limited because the underlying pathogenesis remains incompletely understood. Circular RNAs, as key regulators in various diseases, remain poorly understood in pulmonary fibrosis induced by silica. METHODS We performed studies with fibroblast cell lines and silica-induced mouse pulmonary fibrosis models. The expression of circZNF609, miR-145-5p, and KLF4 was determined by quantitative real-time polymerase chain reaction (qRT-PCR) analysis. RNA immunoprecipitation (RIP) assays and m6A RNA immunoprecipitation assays (MeRIP), Western blotting, immunofluorescence assays, and CCK8 were performed to investigate the role of the circZNF609/miR-145-5p/KLF4 axis and circZNF609-encoded peptides in fibroblast activation. RESULTS Our data showed that circZNF609 was downregulated in activated fibroblasts and silica-induced fibrotic mouse lung tissues. Overexpression of circZNF609 could inhibit fibroblast activation induced by transforming growth factor-β1 (TGF-β1). Mechanically, we revealed that circZNF609 regulates pulmonary fibrosis via miR-145-5p/KLF4 axis and circZNF609-encoded peptides. Furthermore, circZNF609 was highly methylated and its expression was controlled by N6-methyladenosine (m6A) modification. Lastly, in vivo studies revealed that overexpression of circZNF609 attenuates silica-induced lung fibrosis in mice. CONCLUSIONS Our data indicate that circZNF609 is a critical regulator of fibroblast activation and silica-induced lung fibrosis. The circZNF609 and its derived peptides may represent novel promising targets for the treatment of pulmonary fibrosis.
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Affiliation(s)
- Wenqing Sun
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Siyun Zhou
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Lan Peng
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Yi Liu
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Demin Cheng
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Yue Wang
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Chunhui Ni
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China.
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang, 320700, China.
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Hoque P, Romero B, Akins RE, Batish M. Exploring the Multifaceted Biologically Relevant Roles of circRNAs: From Regulation, Translation to Biomarkers. Cells 2023; 12:2813. [PMID: 38132133 PMCID: PMC10741722 DOI: 10.3390/cells12242813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
CircRNAs are a category of regulatory RNAs that have garnered significant attention in the field of regulatory RNA research due to their structural stability and tissue-specific expression. Their circular configuration, formed via back-splicing, results in a covalently closed structure that exhibits greater resistance to exonucleases compared to linear RNAs. The distinctive regulation of circRNAs is closely associated with several physiological processes, as well as the advancement of pathophysiological processes in several human diseases. Despite a good understanding of the biogenesis of circular RNA, details of their biological roles are still being explored. With the steady rise in the number of investigations being carried out regarding the involvement of circRNAs in various regulatory pathways, understanding the biological and clinical relevance of circRNA-mediated regulation has become challenging. Given the vast landscape of circRNA research in the development of the heart and vasculature, we evaluated cardiovascular system research as a model to critically review the state-of-the-art understanding of the biologically relevant functions of circRNAs. We conclude the review with a discussion of the limitations of current functional studies and provide potential solutions by which these limitations can be addressed to identify and validate the meaningful and impactful functions of circRNAs in different physiological processes and diseases.
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Affiliation(s)
- Parsa Hoque
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA;
| | - Brigette Romero
- Department of Medical and Molecular Sciences, University of Delaware, Newark, DE 19716, USA;
| | - Robert E Akins
- Nemours Children’s Research, Nemours Children’s Health System, Wilmington, DE 19803, USA;
| | - Mona Batish
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA;
- Department of Medical and Molecular Sciences, University of Delaware, Newark, DE 19716, USA;
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Zhan J, Yang J, Zheng J, Qi Y, Ye Y, Chen X, Wei X. CircMIRLET7BHG, upregulated in an m6A-dependent manner, induces the nasal epithelial barrier dysfunction in allergic rhinitis pathogenesis. Int Immunopharmacol 2023; 125:111162. [PMID: 37976602 DOI: 10.1016/j.intimp.2023.111162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 10/26/2023] [Accepted: 10/31/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVE Allergic rhinitis (AR) remains a frequent aspiratory allergic inflammatory disorder with a high incidence. Circular RNAs (circRNAs) have been revealed to participate in the pathogenesis of AR. This study investigated the biological function of circMIRLET7BHG (hsa_circ_0008668) in AR progression. METHODS Ovalbumin (OVA)-exposed human nasal epithelial cell line (HNEpC) and mice were adopted as the in vitro and in vivo models of AR. Immunofluorescence staining was used to determine epithelial tight junction protein expression. Target molecule levels were assessed by RT-qPCR and Western blotting. Localization of circMIRLET7BHG and IGF2BP1 was observed by RNA-FISH and immunofluorescence. Epithelial barrier damage was determined by transepithelial electrical resistance and fluorescein isothiocyanate-dextran (FD4) permeability. Serum concentrations of IgE, sIgE, IFN-γ, IL-4, and IL-5 were detected by ELISA. Apoptosis, pathological changes, and eosinophil infiltration in nasal mucosa tissues were evaluated by TUNEL, H&E, and Sirius red staining, respectively. Molecular mechanism was analyzed by RNA pull-down, RIP, and MeRIP assays. RESULTS An increased expression of circMIRLET7BHG was found in AR patients and experimental models. Down-regulation of circMIRLET7BHG attenuated OVA-induced allergic symptoms via relieving epithelial thicknesses, eosinophil infiltration, apoptosis, and inflammatory response in mice. Subsequently, circMIRLET7BHG deficiency prevented OVA-induced epithelial barrier dysfunction by reducing epithelial permeability, and inhibiting tight junction proteins. Mechanistically, methyltransferase-like 3 (METTL3) enhanced circMIRLET7BHG expression via m6A methylation, which enhanced ADAM10 mRNA stability via interaction with IGF2BP1. CONCLUSION METTL3-mediated m6A modification increased circMIRLET7BHG expression that consequently raised ADAM10 mRNA stability via interplay with IGF2BP1, thereby promoting AR by inducing epithelial barrier dysfunction.
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Affiliation(s)
- Jiabin Zhan
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), No.19, Xiuhua Road, Haikou City, Hainan Province 570311, P.R. China
| | - Jie Yang
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), No.19, Xiuhua Road, Haikou City, Hainan Province 570311, P.R. China
| | - Jing Zheng
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), No.19, Xiuhua Road, Haikou City, Hainan Province 570311, P.R. China
| | - Yanyan Qi
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), No.19, Xiuhua Road, Haikou City, Hainan Province 570311, P.R. China
| | - Yi Ye
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), No.19, Xiuhua Road, Haikou City, Hainan Province 570311, P.R. China
| | - Xiaoqian Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), No.19, Xiuhua Road, Haikou City, Hainan Province 570311, P.R. China
| | - Xin Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), No.19, Xiuhua Road, Haikou City, Hainan Province 570311, P.R. China.
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Wang X, Xie J, Tan L, Lu Y, Shen N, Li J, Hu H, Li H, Li X, Cheng L. N6-methyladenosine-modified circRIMS2 mediates synaptic and memory impairments by activating GluN2B ubiquitination in Alzheimer's disease. Transl Neurodegener 2023; 12:53. [PMID: 38012808 PMCID: PMC10683276 DOI: 10.1186/s40035-023-00386-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 11/02/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Synaptic degeneration occurs in the early stage of Alzheimer's disease (AD) before devastating symptoms, strongly correlated with cognitive decline. Circular RNAs (circRNAs) are abundantly enriched in neural tissues, and aberrant expression of circRNAs precedes AD symptoms, significantly correlated with clinical dementia severity. However, the direct relationship between circRNA dysregulation and synaptic impairment in the early stage of AD remains poorly understood. METHODS Hippocampal whole-transcriptome sequencing was performed to identify dysregulated circRNAs and miRNAs in 4-month-old wild-type and APP/PS1 mice. RNA antisense purification and mass spectrometry were utilized to unveil interactions between circRIMS2 and methyltransferase 3, N6-adenosine-methyltransferase complex catalytic subunit (METTL3). The roles of circRIMS2/miR-3968 in synaptic targeting of UBE2K-mediated ubiquitination of GluN2B subunit of NMDA receptor were evaluated via numerous lentiviruses followed by morphological staining, co-immunoprecipitation and behavioral testing. Further, a membrane-permeable peptide was used to block the ubiquitination of K1082 on GluN2B in AD mice. RESULTS circRIMS2 was significantly upregulated in 4-month-old APP/PS1 mice, which was mediated by METTL3-dependent N6-methyladenosine (m6A) modification. Overexpression of circRIMS2 led to synaptic and memory impairments in 4-month-old C57BL/6 mice. MiR-3968/UBE2K was validated as the downstream of circRIMS2. Elevated UBE2K induced synaptic dysfunction of AD through ubiquitinating K1082 on GluN2B. Silencing METTL3 or blocking the ubiquitination of K1082 on GluN2B with a short membrane-permeable peptide remarkably rescued synaptic dysfunction in AD mice. CONCLUSIONS In conclusion, our study demonstrated that m6A-modified circRIMS2 mediates the synaptic and memory impairments in AD by activating the UBE2K-dependent ubiquitination and degradation of GluN2B via sponging miR-3968, providing novel therapeutic strategies for AD.
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Affiliation(s)
- Xiong Wang
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Jiazhao Xie
- Departments of Pathophysiology, Guangxi Medical University, Nanning, 530021, China
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lu Tan
- Hepatic Biliary Pancreatic Surgery Department, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Yanjun Lu
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Na Shen
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jiaoyuan Li
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hui Hu
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Huijun Li
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiaoguang Li
- Clinic Center of Human Gene Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Liming Cheng
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Xu H, Chen G, Zhou J, Zhou X, Wang P, Chen C, Xu Z, Lv F, Li X. Identification and validation of m 6A RNA regulatory network in pulpitis. BMC Oral Health 2023; 23:878. [PMID: 37978362 PMCID: PMC10656916 DOI: 10.1186/s12903-023-03578-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 10/25/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND N6-methyladenosine (m6A) RNA modification regulators play an important role in many human diseases, and its abnormal expression can lead to the occurrence and development of diseases. However, their significance in pulpitis remains largely unknown. Here, we sought to identify and validate the m6A RNA regulatory network in pulpitis. METHODS Gene expression data for m6A regulators in human pulpitis and normal pulp tissues from public GEO databases were analyzed. Bioinformatics analysis including Gene ontology (GO) functional, and Kyoto encyclopedia of genes and genomes (KEGG) pathway analyses were performed by R package, and Cytoscape software was used to study the role of m6A miRNA-mRNA regulatory network in pulpitis. Quantitative real-time PCR (qRT-PCR) was performed to validate the expression of key m6A regulators in collected human pulpitis specimens. RESULTS Differential genes between pulpitis and normal groups were found from the GEO database, and further analysis found that there were significant differences in the m6A modification-related genes ALKBH5, METTL14, METTL3, METTL16, RBM15B and YTHDF1. And their interaction relationships and hub genes were determined. The hub m6A regulator targets were enriched in immune cells differentiation, glutamatergic synapse, ephrin receptor binding and osteoclast differentiation in pulpitis. Validation by qRT-PCR showed that the expression of methylases METTL14 and METTL3 was decreased, thus these two genes may play a key role in pulpitis. CONCLUSION Our study identified and validated the m6A RNA regulatory network in pulpitis. These findings will provide valuable resource to guide the mechanistic and therapeutic analysis of the role of key m6A modulators in pulpitis.
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Affiliation(s)
- Hui Xu
- Department of Stomatology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua Municipal Central Hospital, JinHua, China
| | - Guangjin Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Jiaying Zhou
- Department of Stomatology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua Municipal Central Hospital, JinHua, China
- College of Medicine, Huzhou University, Huzhou, 313000, China
| | - Xukang Zhou
- Department of Stomatology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua Municipal Central Hospital, JinHua, China
- Department of Health Management Center, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua Municipal Central Hospital, JinHua, China
| | - Pengcheng Wang
- Department of Stomatology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua Municipal Central Hospital, JinHua, China
| | - Chunhui Chen
- Department of Stomatology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua Municipal Central Hospital, JinHua, China
| | - Zhi Xu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Fengyuan Lv
- Center of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
| | - Xiaofang Li
- Department of Stomatology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua Municipal Central Hospital, JinHua, China.
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Zhou M, Liu Y, Xu H, Chen X, Zheng N, Duan Z, Ge Y, Li D, Lin T, Zeng R, Chen Q, Li M. YTHDC1-Modified m6A Methylation of Hsa_circ_0102678 Promotes Keratinocyte Inflammation Induced by Cutibacterium acnes Biofilm through Regulating miR-146a/TRAF6 and IRAK1 Axis. J Innate Immun 2023; 15:822-835. [PMID: 37903473 PMCID: PMC10684258 DOI: 10.1159/000534704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 10/17/2023] [Indexed: 11/01/2023] Open
Abstract
INTRODUCTION CircRNAs are closely related to many human diseases; however, their role in acne remains unclear. This study aimed to determine the role of hsa_circ_0102678 in regulating inflammation of acne. METHODS First, microarray analysis was performed to study the expression of circRNAs in acne. Subsequently, RNase R digestion assay and fluorescence in situ hybridization assay were utilized to confirm the characteristics of hsa_circ_0102678. Finally, qRT-PCR, Western blotting analysis, immunoprecipitation, luciferase reporter assay, circRNA probe pull-down assay, biotin-labeled miRNA pull-down assay, RNA immunoprecipitation assay, and m6A dot blot assay were utilized to reveal the functional roles of hsa_circ_0102678 on inflammation induced by C. acnes biofilm in human primary keratinocytes. RESULTS Our investigations showed that the expression of hsa_circ_0102678 was significantly decreased in acne tissues, and hsa_circ_0102678 was a type of circRNAs, which was mainly localized in the cytoplasm of primary human keratinocytes. Moreover, hsa_circ_0102678 remarkably affected the expression of IL-8, IL-6, and TNF-α, which induced by C. acnes biofilm. Importantly, mechanistic studies indicated that the YTHDC1 could bind directly to hsa_circ_0102678 and promote the export of N6-methyladenosine-modified hsa_circ_0102678 to the cytoplasm. Besides, hsa_circ_0102678 could bind to miR-146a and sponge miR-146a to promote the expression of IRAK1 and TRAF6. CONCLUSION Our findings revealed a previously unknown process by which hsa_circ_0102678 promoted keratinocyte inflammation induced by C. acnes biofilm via regulating miR-146a/TRAF6 and IRAK1 axis.
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Affiliation(s)
- Meng Zhou
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Yuzhen Liu
- Department of Dermatology, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Haoxiang Xu
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Xu Chen
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Nana Zheng
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Zhimin Duan
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Yiping Ge
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Dongqing Li
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Tong Lin
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Rong Zeng
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Department of Dermatology, Yunnan Provincial Traditional Chinese Medicine Hospital, Kunming, China
| | - Qing Chen
- Department of Transfusion Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Min Li
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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